If you have read any of my problems, (computer hangs all of the time) then you should know all about the problem. I booted it today, (still not fixed) into safe mode. As you might know, Windows XP safe mode boot tells you whats going on. When it got to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive, and the little hard driver light is on.

[Reply or follow-up to this message]

I'm aware of this prob! Have just bought a skeleton box and added a hard drive from my old box. It doesn't hang after MUP.SYS - simply reboats and around we go again. Two ideas 1) Have you added any PCI stuff to your box? If so - take it out and try again 2) It's possibly something to do with security so you could try booting off your XP disc? This might make it clear that you are a legit user. Try computing.net for more details. I'll let you know how mine works out. Rgds Mike


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

Thanks. It turns out, I've gotten two defective processors. I'm getting a new one, but I don't know when FedEX will deliver. You know them. Their policy should be "Handle with care or fragle=Use it as a baseball. Slower is better" It seems that way at least. Heck, it could be. Ha ha. Thanks.


On Tuesday, May 20, 2003 at 8:05 am, Mike KNox wrote:
>I'm aware of this prob! Have just bought a skeleton box and added a hard drive from
>my old box. It doesn't hang after MUP.SYS - simply reboats and around we go again.
>
>Two ideas
>
>1) Have you added any PCI stuff to your box? If so - take it out and try again
>
>2) It's possibly something to do with security so you could try booting off your
>XP disc? This might make it clear that you are a legit user.
>
>Try computing.net for more details.
>
>I'll let you know how mine works out.
>
>Rgds
>
>Mike
>
>

[Reply or follow-up to this message]

>Thanks. It turns out, I've gotten two defective processors. I'm getting a new one, "Defective processors are rare, and having 2 is outright near impossible." I have encountered this issue with Mup.sys merely by changing the hard drive with windows XP on it to a system that is identical in every way. And even had this occur simply by changing the microprocessor for an identical one... my guess is that windows XP somehow is accessing the hardware ID in the microprocessor, (even though I always have it turned off in the BIOS). MUP.sys - Multiple UNC provider...x heres a fix posted on another site Start the Recovery console or.. Start the computer with the boot disks or Windows CDROM After the Welcome to Setup dialog box appears, press R to repair, and then press C to start Recovery console. Choose install Windows and log on as Administrator. At the command prompt type "disable Mup.sys" "MUP stands for "Multiple UNC Provider" which assists Windows in locating resources when more than one redirector is on a machine such as "Microsoft Client for Microsoft Networks" and the "Novell Client for Novell Netware". When a connection to a server is requested it does not know if the request is to a Novell server or an NT server. It will start looking for the server with the primary protocol on the primary requestor and then continue looking for the server on each protocol bound to each redirector until the server is found." Restart the computer and all should be well.

[Reply or follow-up to this message]

Well, we both had the same problem. I had two defective processors. Ha ha. Lol.


On Thursday, May 29, 2003 at 11:10 am, Gary Thonerfelt wrote:
>
>
>
>Thanks. It turns out, I've gotten two defective processors. I'm getting a new one,
>
>"Defective processors are rare, and having 2 is outright near impossible."
>
>I have encountered this issue with Mup.sys merely by changing the hard drive with
>windows XP on it to a system that is identical in every way. And even had this occur
>simply by changing the microprocessor for an identical one... my guess is that windows
>XP somehow is accessing the hardware ID in the microprocessor, (even though I always
>have it turned off in the BIOS).
>
>MUP.sys - Multiple UNC provider...x
>heres a fix posted on another site
>
> Start the Recovery console or..
>Start the computer with the boot disks or Windows CDROM
>After the Welcome to Setup dialog box appears, press R to repair, and then press
>C to start Recovery console.
>Choose install Windows and log on as Administrator.
>
>At the command prompt type "disable Mup.sys"
>
>"MUP stands for "Multiple UNC Provider" which assists Windows in locating resources
>when more than one redirector is on a machine such as "Microsoft Client for Microsoft
>Networks" and the "Novell Client for Novell Netware". When a connection to a server
>is requested it does not know if the request is to a Novell server or an NT server.
>It will start looking for the server with the primary protocol on the primary requestor
>and then continue looking for the server on each protocol bound to each redirector
>until the server is found."
>
>Restart the computer and all should be well.
>
>
>
>

[Reply or follow-up to this message]

I had this same problem. it actually caused me to buy a new processor that I wanted anyway, but I couldn't get the computer to boot off of the WinXP Pro CD. It would always hang at the file that supported multiple processors. I finally fixed the problem by disabling the quick POST in my BIOS. for whatever reason, this solved the problem. maybe that will work for you without disabling the DLL in windows.


On Thursday, May 29, 2003 at 11:51 am, Brian wrote:
>Well, we both had the same problem. I had two defective processors. Ha ha. Lol.
>
>

[Reply or follow-up to this message]

Thanks for the help, but the company I bought the processor/motherboard from replaced them both. It works great now! Thanks.


On Tuesday, June 3, 2003 at 5:03 pm, Richard Prescott wrote:
>I had this same problem. it actually caused me to buy a new processor that I wanted
>anyway, but I couldn't get the computer to boot off of the WinXP Pro CD. It would
>always hang at the file that supported multiple processors. I finally fixed the
>problem by disabling the quick POST in my BIOS. for whatever reason, this solved
>the problem. maybe that will work for you without disabling the DLL in windows.
>
>

[Reply or follow-up to this message]

I think mup.sys is getting a bad rap in all of this. I had the problem, where booting in safe mode, the computer would hang, and the last line listed was the mup.sys line. My problem was actually solved by moving a ram chip from one slot to the next adjacent slot. The computer will hang if it gets a bad read from a ram chip, and in this instance, it was hanging coincidentally when the mup.sys line was displayed.


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

Agreed. I was able to get into the recovery console and successfully disabled mup. (For the record, you just type disable mup, not disable mup.sys.) After doing this, I rebooted in safe mode and now it just hangs in a different spot. I'll keep working on mine and see if I come up with anything. My theory is that my cats knocked something loose and now bootup is hanging. Stupid cats.


On Friday, June 13, 2003 at 11:26 pm, Rick wrote:
>I think mup.sys is getting a bad rap in all of this. I had the problem, where booting
>in safe mode, the computer would hang, and the last line listed was the mup.sys line.
> My problem was actually solved by moving a ram chip from one slot to the next adjacent
>slot. The computer will hang if it gets a bad read from a ram chip, and in this
>instance, it was hanging coincidentally when the mup.sys line was displayed.
>
>

[Reply or follow-up to this message]

Boot into safe mode with command prompt. Get a copy of mup.sys off of another XP machine. Put it onto a floppy and copy into c:\windows\system32\drivers This will take care of it in 5 minutes or less.


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

I just ran thru the same problem. But mine's worse. When i try to boot up using the win2k setup CDROM it would also hang. Finally i managed to get Windows to startup by removing all my PCI cards, moving my boot drive from my IDE controller to the on board IDE controller, and moving one of my 256 DDR RAM to the next slot. I removed all the hardware listings (under hidden) and reinstalled each PCI one by one. Now it works. Thanks guys for your posts to help me get started. I have been so stressed out and irritated by this MUP.SYS issue.


On Tuesday, June 17, 2003 at 7:57 am, Jay wrote:
>Agreed. I was able to get into the recovery console and successfully disabled mup.
> (For the record, you just type disable mup, not disable mup.sys.) After doing this,
>I rebooted in safe mode and now it just hangs in a different spot.
>
>I'll keep working on mine and see if I come up with anything. My theory is that
>my cats knocked something loose and now bootup is hanging. Stupid cats.
>
>

[Reply or follow-up to this message]

WIth my previous post, I thought it might be useful to post some background information 
for folks running into the same problem.

I was installing a PCI based professional Digital recording and mixing sound card 
when this happened - M-Audio Delta 1010LT.

I was running my HDDs off a Maxtor ATA133 PCI controller card
GeForce 4 Ti 4200
AMD 2000+
MSI Ultra KT333 mobo
512 MB muskin DDR 333 (2 x 256MB slot 0 and 1 at first. I had to run them at slot 
0 and 2 later to make the 2nd 256MB post)
NEtGear PCI 310 Ethernet
DVDROM and Burner running off onboard IDE (one per channel)

Everything works well now. I am so glad i did not have to do a low level format. 
I retained all my settings and OS.

Thanks again to all the posters here. I was searching MS support site and could not 
find anything useful there with regards to this problem. It is forums like these 
that gave us folks some hope. Thanks a million.





On Thursday, June 26, 2003 at 3:08 pm, Albert Lim wrote:
>I just ran thru the same problem. But mine's worse. When i try to boot up using 
the 
>win2k setup CDROM it would also hang. 
>
>Finally i managed to get Windows to startup by removing all my PCI cards, moving 
>my boot drive from my IDE controller to the on board IDE controller, and moving 
one 
>of my 256 DDR RAM to the next slot.
>I removed all the hardware listings (under hidden) and reinstalled each PCI one 
by 
>one. Now it works. Thanks guys for your posts to help me get started. I have been 
>so stressed out and irritated by this MUP.SYS issue.
>
>

[Reply or follow-up to this message]

The problem with that Jay is that in my situation, it would not even boot into safe 
mode. It would hang at mup.sys. Even when i try to boot using the CDROM setup disk, 
it would hang as well. I was running out of ideas when i started to move hardware 
around and got it to work after trial and error. I am still very unclear what is 
the real cause of this. MS seems very tight lipped about this as well coz i could 
not find any thing on this issue on the MS support Knowledgebase. 







On Thursday, June 26, 2003 at 2:34 pm, Dan wrote:
>Boot into safe mode with command prompt.  Get a copy of mup.sys off of another XP 
>machine.  Put it onto a floppy and copy into c:\windows\system32\drivers  This will 
>take care of it in 5 minutes or less.
>
>

[Reply or follow-up to this message]

I had this same problem in Windows XP and finally figured out what fixed it in my case. I couldn't boot regularly, safe mode, from the XP CD, etc. I had no way of getting into the system! The USB problems people have mentioned on various message boards prompted me to check my usb mouse out. It's an optical mouse so I could try it in another machine and tell immediately whether it was working (since it lit up). Unplugging it and plugging it in again while the machine was off didn't help. But when I got to the mup.sys line while safe mode was booting I unplugged the USB mouse and the machine continued to boot! I now have the mouse plugged in and it reboots with no problems. So, yet one more thing to try; unplug all of your USB devices after the mup.sys line appears. It may just continue!

[Reply or follow-up to this message]

I have almost the same problem. After I upgraded my video card to Radeon 9500Pro, my computer randomly halt in games, NWN, C&C Generals. How ever, all other programs run well. The problem is much more serious after I changed my CPU from Duron 1.2G to Athlon XP 2400+. The computer halts all the time. It takes long time to enter windows xp, can not pass 3DMark 03, can not pass disk error check, can not enter safe mode (some time can). I tried almost everything I can, changing RAM, removing cards (NIC, TV card, Video card), changing IDE cables,formating HD, reinstall XP. Problem was still there. After I installed windows 98 on another hard driver, everything was fine. So, it may not hardware problems. I noticed the computer takes long time to load mup.sys, so I decided to have a look about it. Didn't find anything from M$. Thanks goodness, I found this message. Now my computer runs well. It passed 3DMark 03 without any problem and I can copy 10G files from one HD to another. This is what I did after view the message: 1: disable mup. 2: change NIC to #5 slot (my motherboard has five PCI slot and some IRQs are shared). Why #5? because #1, #5 and ACR shared same IRQ and I don't have ACR card and #1 slot is empty.


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

I tried disabling the mup and it just hung at a later point, so I unplugged all usb devices and chose last known good configuration. This finally got me into windows xp. The first thing I did was go to System restore and go back to the last system checkpoint. After the system restored successfully, I plugged everything back in and it seems to work fine. I think it had a lot more to do with choosing last known good configuration as I had not chosen that before.


On Tuesday, July 1, 2003 at 10:06 am, Jeff wrote:
>I have almost the same problem. After I upgraded my video card to Radeon 9500Pro,
>my computer randomly halt in games, NWN, C&C Generals. How ever, all other programs
>run well.
>
>The problem is much more serious after I changed my CPU from Duron 1.2G to Athlon
>XP 2400+. The computer halts all the time. It takes long time to enter windows xp,
>can not pass 3DMark 03, can not pass disk error check, can not enter safe mode (some
>time can).
>
>I tried almost everything I can, changing RAM, removing cards (NIC, TV card, Video
>card), changing IDE cables,formating HD, reinstall XP. Problem was still there. After
>I installed windows 98 on another hard driver, everything was fine. So, it may not
>hardware problems.
>
>I noticed the computer takes long time to load mup.sys, so I decided to have a look
>about it. Didn't find anything from M$.
>
>Thanks goodness, I found this message. Now my computer runs well. It passed 3DMark
>03 without any problem and I can copy 10G files from one HD to another.
>
>This is what I did after view the message:
>
>1: disable mup.
>
>2: change NIC to #5 slot (my motherboard has five PCI slot and some IRQs are shared).
>Why #5? because #1, #5 and ACR shared same IRQ and I don't have ACR card and #1 slot
>is empty.
>

[Reply or follow-up to this message]

Well I am having the same problem right now. I have been posting on MS's newsgroups for the past 2 weeks and they have not posted 1 time to help. I am having the problem where it will not boot even when i enter the cd. It gets to the point that says starting windows but never gives me the option to repair.. it just freezes. I think i am going to try and put the HD in another computer(since it works that way) and disabling Mup.sys. If that doesnt work i am going to try a new processor and see if that works. Great posts guys just wanted to say thanks for posting.

[Reply or follow-up to this message]

well. tried hooking my new hd up to my old computer. and i got an error "a read error occured" then after trying all jumper settings i set it up as a slave and i can read the hd. no problems. so i decided to change the hd back to the old computer and tried from there again. Removed the USB 1 and 2 support removed audio support tried everything. so i have to wait to the weekend to try and disable the mup and the new processor. any other ideas.. .help


On Monday, July 21, 2003 at 11:43 am, Sean wrote:
>Well I am having the same problem right now. I have been posting on MS's newsgroups
>for the past 2 weeks and they have not posted 1 time to help.
>
>I am having the problem where it will not boot even when i enter the cd. It gets
>to the point that says starting windows but never gives me the option to repair..
>it just freezes.
>
>I think i am going to try and put the HD in another computer(since it works that
>way) and disabling Mup.sys. If that doesnt work i am going to try a new processor
>and see if that works.
>Great posts guys just wanted to say thanks for posting.

[Reply or follow-up to this message]

OK - I'm coming in well into this, but i found this thread when i, too, attempted to boot into safe-mode only to discover a 'hang' at the moment after MUP.SYS loaded. But I had some pretty severe symptoms that led me here as well - 1. my floppy couldn't recognize a disk with known-good data - it reported messages saying any disk was 'not formatted', and even then i couldn't even get it to complete a format on a blank fresh floppy. 2. my CDROM could play music but not show me the track.cdda file list in an 'explorer' window and my DVD-ROM couldn't do anything. 3. my networking was inoperative. IPCONFIG wouldn't run at all. 4. event-viewer said the 'null', 'beep', 'ipsec', and a variety of other services had failed to start because the related drivers were 'invalid' 5. my device-manager reported my floppy disk with a yellow exclam point, my 'microcode updated device' (a system device) also with a yellow exclam. 6. i had already tried 'uninstalling' the floppy disk and 'reinstalling' it - with no luck so today i started looking at these drivers (mup.sys, flpydisk.sys, fs_rec.sys, etc. tcpip.sys, and some others) in my Windows/system32/drivers folder. lo and behold, when i ran the mouse over 'em, some of the drivers in the folder clearly gave little balloon messages what they were, while the ones named above only showed the 'date created' and no name or function info in the balloon. i concluded those must the the 'invalid' ones. happily i had a copy of XP drivers from another XP computer I had partly backed up and started locating 'invalid' drivers on the one XP computer and replacing them with copies from the other (good) XP computer. BINGO! within minutes I had my networking back (by replacing the tcpip.sys), then i kept going and now i have my floppy, cdrom, and everything else. btw, refreshing MUP.SYS made the device-manager 'microcode update device' error mark disappear. turns out the floppy really needed fs_rec.sys (filesystem recognizer driver) refreshed, and that also made the CDROM come back. i wound up refreshing null.sys, beep.sys, and a bunch of others and that made the event-viewer stop reporting all those errors on bootup. no more 'invalid drivers' causing various services to not start when needed. i don't suggest doing this willy-nilly. i was careful to match byte-counts and original 'date-created' on each one and only refreshed ones that 'appeared' invalid by the lack of function/name in the balloon indicators. a little tedious, but the computer is back to 100%. i hope this helps you all get to the bottom of this. btw, MUP.SYS is the 'multiple UNC' driver, but it is reflected in your device-manager as 'Microcode UPdate Device' - which makes more sense. not that i know what this thing *does*, but I bet it is the thing that updates WinXP when you add a hard drive or ram to your computer. i haven't tried again to boot into safe mode, but i bet it won't hang after MUP.SYS now :) Good luck, folks - hope you succeed in fixing your systems. DDD


On Monday, July 21, 2003 at 9:39 pm, sean wrote:
>well. tried hooking my new hd up to my old computer.

[Reply or follow-up to this message]

I started having the freeze at mup.sys problem after intalling an audigy LS and then an HP CD burner. I had several successful reboots after the upgrades. Of course the lockup started the first time I rebooted with the case back on. I removed the card and the burner, no luck. The interesting thing is that I could boot into Linux with no problem, but XP would hang every time. ***I swithing the DDR stick to another slot, and voila, it boots again...very odd, but minimally invasive...glad I did not have to do a repair from the CD***. The solution does not make sense to me, but hey it's a Microsodt product (useful yes, dependable no). So thanks everyone for the non-sensical workaround tha really works. If anyone knows why windows would fail but not linux, I'd be interested to know.


On Thursday, June 26, 2003 at 3:39 pm, Albert Lim wrote:

>WIth my previous post, I thought it might be useful to post some background information 
>for folks running into the same problem.
>
>I was installing a PCI based professional Digital recording and mixing sound card 
>when this happened - M-Audio Delta 1010LT.
>
>I was running my HDDs off a Maxtor ATA133 PCI controller card
>GeForce 4 Ti 4200
>AMD 2000+
>MSI Ultra KT333 mobo
>512 MB muskin DDR 333 (2 x 256MB slot 0 and 1 at first. I had to run them at slot 
>0 and 2 later to make the 2nd 256MB post)
>NEtGear PCI 310 Ethernet
>DVDROM and Burner running off onboard IDE (one per channel)
>
>Everything works well now. I am so glad i did not have to do a low level format. 
>I retained all my settings and OS.
>
>Thanks again to all the posters here. I was searching MS support site and could 
not 
>find anything useful there with regards to this problem. It is forums like these 
>that gave us folks some hope. Thanks a million.
>

[Reply or follow-up to this message]

I recently had the experience of Win XP hanging during load, with nil on screen, and eventually figured out it was stalling at mup.sys. Tried rebuilding the PC but the Win XP install wouldn't run. Then booted from floppy & re-formatted HDD, still no joy. It was then that I realised that earlier that day I had gone into the ROM BIOS and enabled the Bios antivirus facility. So I disabled it again. Having now rebuilt my PC without incident, I tested this again by re-enabling the BIOS antivirus, and sure enough the PC wouldn't boot. This may not solve anyone else's problem with mup.sys, but thought I'd share it just in case.


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

Exactly the same Gunna try this fix in a minute


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

I tried going into Win2k Pro repair mode and disabling mup.sys but got a msg saying 'disable' was an invalid command. Any Suggestions?

[Reply or follow-up to this message]

type disable mup not disable mup.sys


On Friday, January 2, 2004 at 7:05 am, Jim wrote:
>
>I tried going into Win2k Pro repair mode and disabling mup.sys but got a msg saying
>'disable' was an invalid command. Any Suggestions?

[Reply or follow-up to this message]

Well - my solution is to change the computer type in Control panel (System- Hardware- Computer)from 'Uniprocessor ACPI' to 'Advanced Configuration and Power Interface'. I think MUP.sys hanging WinXP is a power problem NOT a porblem with MUP.sys. I tried everything that everybody else tried - changing and removing hardware, disabling mup.sys, rebooting again and again, etc etc. All a complete waste of time! The problem seems to be that changing any hardware (eg removing the USB mouse) makes WinXP start and then changing it again makes it stop - and it also seems to be incosisent so it sometimes works and seomtimes doesn't. So I even got to the point of removing a memory module (everything else was off!) and it started working. Any way, I then went into Control panel and applied the changes above and it has worked fine ever since, even when removing or adding hardware. I have now attached all my hardware again and it has worked fine for about 10 reboots. Good luck Paul


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

My son's computer hung at XP mup.sys as well. Just prior to re-formatting the drive and reloading we noticed comments here re usb and tried unplugging the new USB hard drive storage device. XP then started without a hitch. It seems to be a USB problem and an intermittent one at that. The drive is a 2.0 USB but the computer is 1.1.


On Thursday, January 1, 2004 at 7:21 am, Seventh-Monkey wrote:
>Exactly the same
>Gunna try this fix in a minute
>
>

[Reply or follow-up to this message]

I have this problem now too...kind of. Was working on a friends computer. Put in a new PCI SCSI card and CD Burner. Rebboted the computer a few times, everything seemed to work fine. Then. for no reason, the keyboard and mouse stopped responding when mup.sys loaded. Works fine moving around the BIOS. Everything else seems to function properly except the keyboard and mouse. I took out the SCSI card and burner. Still the same. Anyone?!? I'll try everything below, but, I don't know since he has the old PS/2 style keyboard and mouse.


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

"my solution is to change the computer type in Control panel" Well, fraid that's a bit difficult for those of us who can't actually boot. I've installed Windows 2000 and can run that fine, fortunately I can access all my documents on the NTFS partition so I'm gunna back up everything important before trying anything that could screw up a third installation of Windows...

[Reply or follow-up to this message]

Found this message thread via Google and it saved the day for me. Just thought I'd contribute to the accumulating info/knowledge on this problem. Today Win-XP wouldn't boot into ANY mode - hanging at MUP.SYS as described by others. I unplugged my USB optical mouse (Microsoft mouse by the way) and USB CompactFlash card reader. Win started up fine. I immediately shut it down again, plugged my mouse back in and re-started. All is now well. We'll see if the problem re-appears. Note that in the past 3 weeks I: a) changed from a regular mouse to the USB optical mouse. b) accepted a USB update from the Microsoft Windows Update web site. --jeff r--


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

i am running windows xp professional os, and i am having the mup.sys hang problem described here. I have tried EVERY proposed solution on this site and as many others as i could find. Nothing is helping the problem at all. i was wondering if there are any other suggestions as to how i can get into windows or how i could at least save the information on one of my partitions. Thank you very much, Ryan

[Reply or follow-up to this message]

I found it. To make this work, I had to install Windows XP to dual boot. Once inside XP, I edited the problem Windows 2000 registry and found that the keyboard and mouse were disabled. I set the registry keys back to "0" and booted Windows 2000. It seemed fine. I have no idea why these keys were set to disable to keyboard and mouse. The only thing I did was reset the Search Preferences in Internet Explorer back to the defaults. Some hack had sent code to my friends PC to set it to some "SearchXLS" site. Hmmm. Here are the keys: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kbdclass\Start HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Mouclass Actually, CurrentControlSet was not there, I did it for ControlSet001 and ControlSet002


On Tuesday, January 6, 2004 at 9:22 am, Seventh-Monkey wrote:
>"my solution is to change the computer type in Control panel"
>
>Well, fraid that's a bit difficult for those of us who can't actually boot. I've
>installed Windows 2000 and can run that fine, fortunately I can access all my documents
>on the NTFS partition so I'm gunna back up everything important before trying anything
>that could screw up a third installation of Windows...

[Reply or follow-up to this message]

Your tip helped in my case as well. I guess the problem is in starting order of the drivers. Same result may have been achieved by setting the start value of mup.sys larger than 1 which seems to be the default value. I did'n test that so it's only a wild guess. Thanks! pasi


On Wednesday, January 7, 2004 at 12:32 am, Tom wrote:
>I found it. To make this work, I had to install Windows XP to dual boot. Once inside
>XP, I edited the problem Windows 2000 registry and found that the keyboard and mouse
>were disabled. I set the registry keys back to "0" and booted Windows 2000. It seemed
>fine. I have no idea why these keys were set to disable to keyboard and mouse. The
>only thing I did was reset the Search Preferences in Internet Explorer back to the
>defaults. Some hack had sent code to my friends PC to set it to some "SearchXLS"
>site. Hmmm. Here are the keys:
>
>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Kbdclass\Start
>
>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Mouclass
>
>Actually, CurrentControlSet was not there, I did it for ControlSet001 and ControlSet002
>
>
>

[Reply or follow-up to this message]

Same problem. Restored default BIOS, rebooted and everything worked.


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

My PC hung at mup.sys in Safe Mode after disabling ACPI in the power management section of the BIOS. I Was able to boot normally after re-enabing it.

[Reply or follow-up to this message]

I have the similarly described MUP issue. I was at home the other day, and all of the sudden, my PC just reset, like as if it had lost power. Then it came back and got to "windows XP professional" and it has a progress bar, this is a black screen with the XP logo. then, before the windows blue/teal screen comes up, it reboots again as if the Reset button was pressed. now it is doing this constantly. it is in a 'boot loop'. At this point, I decided that this may be some type of hardware failure. I began to remove various HW, down to the point that I have RAM, 1 HDD, and AGP video card. still same result, getting a boot loop. Then I tried disabling everything in the BIOS, onboard NIC, usb ports, etc. still getting a boot loop. then i tried to boot with safe mode. Yesterday i got safe mode to start OK, but i wasn't sure what to do at that point. I then rebooted, and same results. today, I got more extensive. I decided to reload win XP Professional. I reloaded, and am able to get to the setup program and the bootable CD works great. I tried to have setup "repair" windows. It ran itself, then it has the same result after rebooting. boot loop. Now i load the XP cd again, and I can go to recovery console. well, i am not a MCSE on XP or anything, so I didnt know what to do from the recovery console. This is really starting to kill me here. I didnt change ANYhting. I have a spare 12GB known-working HDD. I swap this drive into the machine. then I load XP on the blank HDD it sees the partition, it is NTFS. it loads all of the XP files. reboot, and STILL no luck, getting this same boot loop. now we have clean new SW loaded, and a different HDD and no go. I then tried removing all HW, except AGP card and RAM and HDD. still not working. I then brought the PC to work with me, I am a support rep at a SW company, so I am thinking i can get a good second opinion from a co-worker. they suggested all of the above, go to bare bones system, and start swapping out HW. so I swap all components with known-good parts. swap the video card with a known good card. nope. swap the RAM with known good RAM. Nope. then i tried the above diable MUP. I used the XP recovery console to disable MUP.sys. it disabled itself. still no luck. if i try safe mode, i get to sisagp.sys and hangs there now. if i try last known goodd configuration, then the screen just turns blank and it sits there. if i use safe mode with network or just safe mode, it gets to the sisagp.sys and just hangs. I am at a loss. These posts say that a new processor resolved this issue. that is the only thing that I have not swapped. I cant think of what else would cause this. here is my HW. it is a P4 1.7 256MB pc2100 ddr 12GB western digital HDD. 64MB nvidia gforce III ti200 ps/2 keyboard, and i did have an optical USB mouse. I havent tried to unplug the mouse while it is stuck on the mup.sys error. Please help!!!

[Reply or follow-up to this message]

I'm also facing the same symptoms of the computer hanging at mup.sys on startup. 
My situation is as follows:

When I connect my disk drives to the secondary IDE controller and leave the primary 
controller empty, the system boots up without a problem.

When I connect my drives to the primary controller, I will hang at the mup.sys line 
unless I boot in safe mode. Booting in safe mode with network hangs as well.

Anyway, the problem does not lie in mup.sys, but rather the stuff that gets loaded 
after that. Mup.sys just happens to be the last driver that's loaded that actually 
displays something on the screen. This can easily be verified by disabling mup.sys 
(as mentioned by many other people) and then the computer will just hang at the line 
before mup.sys.

Looking through the boot logs, I compared booting up in safe mode with and without 
network. For my system, the additional drivers that are loaded are:

\SystemRoot\System32\DRIVERS\el90Xbc5.SYS (3COM network card driver)
\SystemRoot\System32\DRIVERS\rasl2tp.sys
\SystemRoot\System32\DRIVERS\ndistapi.sys
\SystemRoot\System32\DRIVERS\ndiswan.sys
\SystemRoot\System32\DRIVERS\raspppoe.sys
\SystemRoot\System32\DRIVERS\raspptp.sys
\SystemRoot\System32\DRIVERS\msgpc.sys
\SystemRoot\System32\DRIVERS\psched.sys
\SystemRoot\System32\DRIVERS\ptilink.sys
\SystemRoot\System32\DRIVERS\raspti.sys
\SystemRoot\System32\Drivers\NDProxy.SYS
\SystemRoot\System32\DRIVERS\rasacd.sys
\SystemRoot\System32\DRIVERS\ipsec.sys
\SystemRoot\System32\DRIVERS\tcpip.sys
\SystemRoot\System32\DRIVERS\netbt.sys
\SystemRoot\System32\DRIVERS\netbios.sys
\SystemRoot\System32\DRIVERS\rdbss.sys
\SystemRoot\System32\DRIVERS\mrxsmb.sys
\SystemRoot\System32\drivers\afd.sys
\SystemRoot\System32\DRIVERS\ndisuio.sys
\SystemRoot\System32\DRIVERS\srv.sys

I suppose it's one of these drivers that causes the system to hang when booting in 
network mode. The problem is that when the system hangs, it does not save the boot 
log so I have no way of checking where exactly it hangs.

Has anyone seen something simliar to this?

[Reply or follow-up to this message]

I was having a similar problem in win2000. Keyboard worked fine in BIOS setup, stopped working once win2000 fired up. Couldn't get into safemode, etc. I read an article at MS win2000 tech site. In short, the problem was the driver Iomega Zip software/driver i loaded was too old. The solution given is to go into the Recovery Console and disable IMGATAPI then enable ATAPI SERVICE_BOOT_START. The additional problem in my case is that the Console is not loaded and I don't have the install disks so I can load it/use it (and I don't have floppy recovery disks either). But I thought I'd post this anyway in case it helps someone; the problem for some folks may be an old atapi or USB device driver, etc.


On Thursday, January 15, 2004 at 8:31 pm, Jeff wrote:
>My PC hung at mup.sys in Safe Mode after disabling ACPI in the power management section
>of the BIOS. I Was able to boot normally after re-enabing it.

[Reply or follow-up to this message]

OK.  I *think* I have a final solution to all of this!  1st, the short answer:  reset 
ESCD in your BIOS.  Now for the long answer:

I had the EXACT same problem as Justin below here although my hardware was TOTALLY 
different.  Just as it seems with all the other sufferers of this issue.  After trying 
absolutely everything that was suggested on this thread with no success, I started 
realizing that some of the posters were right:  this problem has nothing to do with 
mup.sys.  It has everything to do with what gets loaded after it; and that seems 
to differ from machine to machine since hardware configs are so vastly different.

ESCD is the part of the BIOS that handles allocating resourcs to Plug n Play devices. 
Sometimes it gets freaked out and needs to be reset.  Some BIOS's do this for you 
if you make a hardware change (remove a card, change memory slots, move USB device 
locations, etc)  Thats why there have been x number of different fixes for this problem. 
I remember seeing "Updated ESCD Successfully" on other motherboards I've owned in 
the past, even though I never told it to do so.  I've also noticed that adding hardware 
causes the ESCD to freak out somtimes requiring a reset; although I added no hardware 
to cause it to happen to me.  I just put some thermal grease on my processor/heatsink. 

Here is a link describing ESCD:  http://www.pcguide.com/ref/mbsys/res/pnpESCD-c.html

I hope this helps shed some light on this very frustrating problem.






On Thursday, January 15, 2004 at 8:45 pm, dustin wrote:
>I have the similarly described MUP issue.  I was at home the other day, and all 
of 
>the sudden, my PC just reset, like as if it had lost power.   Then it came back 
and 
>got to "windows XP professional" and it has a progress bar, this is a black screen 
>with the XP logo.   then, before the windows blue/teal screen comes up, it reboots 
>again as if the Reset button was pressed.
>now it is doing this constantly.  it is in a 'boot loop'.  At this point, I decided 
>that this may be some type of hardware failure.  I began to remove various HW, down 
>to the point that I have RAM, 1 HDD, and AGP video card.   still same result, getting 
>a boot loop.   Then I tried disabling everything in the BIOS, onboard NIC, usb ports, 
>etc.    still getting a boot loop.   then i tried to boot with safe mode.  Yesterday 
>i got safe mode to start OK, but i wasn't sure what to do at that point.  I then 
>rebooted, and same results.   today, I got more extensive.   I decided to reload 
>win XP Professional.   I reloaded, and am able to get to the setup program and the 
>bootable CD works great.   I tried to have setup "repair" windows.  It ran itself, 
>then it has the same result after rebooting.   boot loop.   Now i load the XP cd 
>again, and I can go to recovery console.   well, i am not a MCSE on XP or anything, 
>so I didnt know what to do from the recovery console.   
>This is really starting to kill me here.  I didnt change ANYhting.  I have a spare 
>12GB known-working HDD.   I swap this drive into the machine.  then I load XP on 
>the blank HDD   it sees the partition, it is NTFS.  it loads all of the XP files. 
>reboot, and STILL no luck, getting this same boot loop.  now we have clean new SW 
>loaded, and a different HDD and no go.   I then tried removing all HW, except AGP 
>card and RAM and HDD.   still not working.
>I then brought the PC to work with me, I am a support rep at a SW company, so I 
am 
>thinking i can get a good second opinion from a co-worker.   they suggested all 
of 
>the above,   go to bare bones system, and start swapping out HW.   so I swap all 
>components with known-good parts.  swap the video card with a known good card.  
nope. 
> swap the RAM with known good RAM.   Nope.  then i tried the above diable MUP.  
 
>I used the XP recovery console to disable MUP.sys.   it disabled itself.  still 
no 
>luck.   if i try safe mode, i get to sisagp.sys and hangs there now.  if i try last 
>known goodd configuration, then the screen just turns blank and it sits there.  
 
>if i use safe mode with network or just safe mode, it gets to the sisagp.sys and 
>just hangs.  I am at a loss.  These posts say that a new processor resolved this 
>issue.  that is the only thing that I have not swapped.  I cant think of what else 
>would cause this.  
>here is my HW.   it is a P4 1.7  256MB pc2100 ddr  12GB western digital HDD.  64MB 
>nvidia gforce III ti200 ps/2 keyboard, and i did have an optical USB mouse.  I havent 
>tried to unplug the mouse while it is stuck on the mup.sys error.
>Please help!!!

[Reply or follow-up to this message]

OK, I've had the same problem with XP freeze and Safe Mode stall at Mups.sys. Final solution was to re-flash the BIOS (downloaded the file from another computer). It seems to me that Mups.sys is just the last file shown before XP goes graphic mode. It did the same pause once I resolved the problem. It may be at this point that it does the hardware "head count" to match its security settings aginst the activation code. Reading through other forums, it appears that XP is highly sensitive to hardware instability. In my case, the capacitors on the m/board are swollen which may have lead to damaged ROM. Apparently, some m/boards reset the BIOS ROM on ESCD; so occasionally a hardware change fixes the problem and sometimes it doesn't (like my Epox). It became obvious that it was a hardware glitch when Win98 on my second hard drive started to freeze as well. Because of previous fiddling (made the mistake of deleting "viaagp.sys", so lost graphics) I had to do a complete re-install of XP on the main HD; and now she hums along better than before. Next freeze and the M/board gets ditched - it's about 3 or 4 years old.


On Saturday, January 17, 2004 at 7:16 pm, AJ wrote:
>I was having a similar problem in win2000. Keyboard worked fine in BIOS setup, stopped
>working once win2000 fired up. Couldn't get into safemode, etc. I read an article
>at MS win2000 tech site. In short, the problem was the driver Iomega Zip software/driver
>i loaded was too old.
>The solution given is to go into the Recovery Console and disable IMGATAPI then enable
>ATAPI SERVICE_BOOT_START. The additional problem in my case is that the Console
>is not loaded and I don't have the install disks so I can load it/use it (and I don't
>have floppy recovery disks either).
>
>But I thought I'd post this anyway in case it helps someone; the problem for some
>folks may be an old atapi or USB device driver, etc.
>
>
>

[Reply or follow-up to this message]

I have the same problem of course, but I can get into XP with safe mode. How do I change from ACPI Uniprocessor PC to Advanced Configuration and Power Interface? I am at the device manager screen under computer, but how do i change it?

[Reply or follow-up to this message]

I just spent 2 hours working on a friends XP box, trying to fix the problem aforementioned. Before I reveal the "fix" that I stumbled on to, I have to say that this forum thread was completely useless except to let me know I wasn't the only one experiencing a mup.sys lockup. Almost everyone here used a different technique to fix the problem, which tells me that no one here really knows what went wrong. I find this frustrating. The fix for my friend’s computer was to select “optimized default” in the BIOS root menu (many of you may not even have this setting), then reboot, and then select “Fail safe default” in the BIOS root menu. Don’t ask me why this worked, but it did. My friend was happy, but I walked away without learning anything! I just have this feeling that we’re missing something.


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

I don't know if anyone of you had just installed Daemon Tools but that is what I had installed and then I ran into this lovely mup.sys lockup. When I would run XP in safemode I saw that after mup.sys loaded I was given the option of letting d344bus.sys install or escaping past it. The only way I could get into safe mode was to use the escape key to bypass that install, and then I could get in. So I went into the recovery console and disabled d344bus.sys and I was once again able to run Windows normally. Well, almost normally because now I have no USB support at all. Doesn't detect any of my devices, so I need to figure out how to reinstall those. But I was able to get past mup.sys!!!! So, if any of you have recently installed daemon tools this might be your problem. (this is Daemon Tools 3.44)


On Wednesday, January 21, 2004 at 7:08 pm, dlb wrote:
>I just spent 2 hours working on a friends XP box, trying to fix the problem aforementioned.
> Before I reveal the "fix" that I stumbled on to, I have to say that this forum thread
>was completely useless except to let me know I wasn't the only one experiencing a
>mup.sys lockup. Almost everyone here used a different technique to fix the problem,
>which tells me that no one here really knows what went wrong. I find this frustrating.
> The fix for my friend’s computer was to select “optimized default” in the BIOS root
>menu (many of you may not even have this setting), then reboot, and then select “Fail
>safe default” in the BIOS root menu. Don’t ask me why this worked, but it did.
>My friend was happy, but I walked away without learning anything! I just have this
>feeling that we’re missing something.
>
>
>

[Reply or follow-up to this message]

updating my own problem: As someone had suggested earlier I had set my bios back to defaults, which disabled my USB support. I turned that back on, and now have USB again. So, basically, Daemon Tools was the problem which was making Mup.sys 'stall'. So, I'd check any recently installed programs that have something installing right after mup.sys and remove those.


On Friday, January 23, 2004 at 7:58 pm, SomeGuy wrote:
>
>I don't know if anyone of you had just installed Daemon Tools but that is what I
>had installed and then I ran into this lovely mup.sys lockup. When I would run XP
>in safemode I saw that after mup.sys loaded I was given the option of letting d344bus.sys
>install or escaping past it. The only way I could get into safe mode was to use
>the escape key to bypass that install, and then I could get in. So I went into the
>recovery console and disabled d344bus.sys and I was once again able to run Windows
>normally. Well, almost normally because now I have no USB support at all. Doesn't
>detect any of my devices, so I need to figure out how to reinstall those. But I
>was able to get past mup.sys!!!! So, if any of you have recently installed daemon
>tools this might be your problem. (this is Daemon Tools 3.44)
>

[Reply or follow-up to this message]

I am having a similar problem to you all. One day the computer just hung and then whenever I restarted, it never got past the MUP.sys file. There was no way to get past it and through to windows. In frustration I formatted the computer and reinstalled Windows on the hard drive, by putting it in another computer. Well it installed ok, but when it came to put it back in my computer, it did the same thing. After some messing around in BIOS, I managed to get it past MUP.sys but now its stuck on the next file, AMDAGP.sys in exactly the same way. I have tried unplugging everything etc. but to no avail. I can't understand whats going on. Any suggestions?


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

I resolved this problem quickly by loading the default optimized bios settings.


On Sunday, January 18, 2004 at 6:54 am, Chas wrote:
>OK, I've had the same problem with XP freeze and Safe Mode stall at Mups.sys.
>Final solution was to re-flash the BIOS (downloaded the file from another computer).
>It seems to me that Mups.sys is just the last file shown before XP goes graphic mode.
>It did the same pause once I resolved the problem. It may be at this point that it
>does the hardware "head count" to match its security settings aginst the activation
>code.
>Reading through other forums, it appears that XP is highly sensitive to hardware
>instability. In my case, the capacitors on the m/board are swollen which may have
>lead to damaged ROM.
>Apparently, some m/boards reset the BIOS ROM on ESCD; so occasionally a hardware
>change fixes the problem and sometimes it doesn't (like my Epox). It became obvious
>that it was a hardware glitch when Win98 on my second hard drive started to freeze
>as well.
>Because of previous fiddling (made the mistake of deleting "viaagp.sys", so lost
>graphics) I had to do a complete re-install of XP on the main HD; and now she hums
>along better than before. Next freeze and the M/board gets ditched - it's about 3
>or 4 years old.
>
>
>

[Reply or follow-up to this message]

My windows 2000 computer was hanging on the mup.sys driver also and I took your advice and swaped my sticks of ram and it worked great, Thanks alot for the help!


On Monday, December 22, 2003 at 10:10 am, Homer Simpson wrote:
>I started having the freeze at mup.sys problem after intalling an audigy LS and then
>an HP CD burner. I had several successful reboots after the upgrades. Of course
>the lockup started the first time I rebooted with the case back on. I removed the
>card and the burner, no luck. The interesting thing is that I could boot into Linux
>with no problem, but XP would hang every time. ***I swithing the DDR stick to another
>slot, and voila, it boots again...very odd, but minimally invasive...glad I did not
>have to do a repair from the CD***. The solution does not make sense to me, but
>hey it's a Microsodt product (useful yes, dependable no). So thanks everyone for
>the non-sensical workaround tha really works. If anyone knows why windows would
>fail but not linux, I'd be interested to know.
>
>

[Reply or follow-up to this message]

Same problem...  this is how I fixed my computer. 
(AMD XP 2700+, EP-RDA3+, ATI 9700pro)

How the problem appeard: 
Installed XPP, SP1a *boot* nForce 3.1 Drivers, dx9b *boot* ATI Catalyst drivers *boot*
And at last Nero6.3. Enabled ImageDrive and booted.

The system rebooted and the last thing loaded was mup.sys. Disabled it. But the system 
failed on the next driver instead.


So i disabled some Nero files. "imagesrv" and "imagesys" and XP started up niceley.

The "Safe Mode" option is still loading drivers installed after the "clean" XP-install. 
 

Since everyone is experiencing the same thing, but the the "path" to the problem 
is almost always different I think we can divide the problem it into crappy hardware, 
crappy drivers and crappy config.

If the computer just crashes and this appears and you are absoluteley shure that 
u havnt installed any new hw and apps , check hardware (especially when the harddrive 
is clicking)

If you tweak the BIOS or disable, say ACPI, and the computer hangs... just load default 
or optimizesdefaults.

If you install a app and the this problem appears, find out what drivers are loaded 
and disable them with Emergency Repair on the XP install CD.

Maybe some pretty obvious points but anyways.. 

So long fellas!

/Martin






On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should 
>know all about the problem. I booted it today, (still not fixed) into safe mode. 
>As you might know, Windows XP safe mode boot tells you whats going on. When it got 
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard 
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive, 
>and the little hard driver  light is on.

[Reply or follow-up to this message]

I joined the Muppets.sys club today, with a failed boot of winXP. Just like others user's I am unable to get past the boot screen, with or without the XP CD. I run a PCchips m810 v7 Mobo/AMD XP 1600, 256ram, NVidia Ti (64mb), Terratec DMX6fire sound. The only USB device connected to the PC at boot is my DSL modem. I cannot see a common fix in the current posts, but will try a few things and report back.

[Reply or follow-up to this message]

Well, I just unplugged the USB modem and rebooted straight into XP, I hot plugged the modem and created a restore point. So far so good ???. I then applied the patch found at: http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=FAA18227-6898-4650-8025-E0C07141B8CF Who knows if any of this will last, I guess Bill Gates has had plenty of reports about this seemingly universal problem with XP, but will we get a fix? Good luck Nigel

[Reply or follow-up to this message]

Same thing happened to me. Moved ram and it is working again. Thanks for the tip.


On Friday, June 13, 2003 at 11:26 pm, Rick wrote:
>I think mup.sys is getting a bad rap in all of this. I had the problem, where booting
>in safe mode, the computer would hang, and the last line listed was the mup.sys line.
> My problem was actually solved by moving a ram chip from one slot to the next adjacent
>slot. The computer will hang if it gets a bad read from a ram chip, and in this
>instance, it was hanging coincidentally when the mup.sys line was displayed.
>
>

[Reply or follow-up to this message]

>OK.  I *think* I have a final solution to all of this!  
> 1st, the short answer:  reset ESCD in your BIOS.

This sounds like the answer closest to the real problem after having read *all* posts.
Something seems to be screwed up and after kicking it hard enough (maybe that's resetting 
ESCD) it works again and will never happen again. NONE of those who said that they 
fixed the problem (no matter which way) later posted again that the problem re-occured.
So I'm pretty much convinced (and truly hope!) this is a one-time problem.

[Reply or follow-up to this message]

Actually, my problem came back again. I tried resetting ESCD to no avail. I thought that it might have something to do with how the motherboard set the voltage level for the processor. I have an 1800+ and it used to run at 1.5v. The supossedly bad board ran it at like 1.8v so I thought that might be it. Since I couldnt adjust the voltage, I decided to go to a local parts store and try a motherboard in their service area. That seemed to fix the problem even though the new board had the voltage at 2.0v! I returned the supposedly bad board and got my money back. I havent had any problems since. So the strange problem really still seems to exist at least in some capacity.


On Wednesday, February 4, 2004 at 3:53 pm, Andreas wrote:

>
>
>
>OK.  I *think* I have a final solution to all of this!  
> 1st, the short answer:  reset ESCD in your BIOS.
>
>This sounds like the answer closest to the real problem after having read *all* 
posts.
>Something seems to be screwed up and after kicking it hard enough (maybe that's 
resetting 
>ESCD) it works again and will never happen again. NONE of those who said that they 
>fixed the problem (no matter which way) later posted again that the problem re-occured.
>So I'm pretty much convinced (and truly hope!) this is a one-time problem.

[Reply or follow-up to this message]

People, don't you realise that the driver which loads after mup.sys creates this issue? And that would be - the AGP VGA card in most cases. Either you have a cheapo AGP card, probably on-board with damaged controller or anything in that sense... or ... I'm totally wrong :-) MM


On Saturday, January 31, 2004 at 2:35 pm, Nigel wrote:
>Well, I just unplugged the USB modem and rebooted straight into XP, I hot plugged
>the modem and created a restore point. So far so good ???. I then applied the patch
>found at:
>
>http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=FAA18227-6898-4650-8025-E0C07141B8CF
>
>Who knows if any of this will last, I guess Bill Gates has had plenty of reports
>about this seemingly universal problem with XP, but will we get a fix?
>
>Good luck
>Nigel

[Reply or follow-up to this message]

Ok, I'm getting desperate here and any help I could get I would be extremely grateful 
for.  I've tried to include as much information as possible.

Last night WinXP was running very slow and locking up, which isn't too unusual as 
I had a thumbnailed window with some large vid files open and a few other programs 
running.  I probably hadn't rebooted in a day or so either.  I tried to restart but 
it just kept locking up so I manually powered down, waited a few seconds, and powered 
it back up.  As I recall, the last message that flashed on the screen was that my 
cordless mouse was low on batteries.  On rebooting the black WinXP logo loaded, stayed 
up for an unusually long time, and then restarted.  This time the "Windows failed 
loading on a previous attempt" blah-blah screen came up.  Have tried load normally, 
last known good config, and safe mode.  All just loop back into a reboot.  Safe mode 
loading stops with mup.sys before rebooting.  I have an OEM Windows XP so I haven't 
been able to use the Windows console to try and repair anything.  I originally thought 
it might be a problem with the master boot record, but that seems to check out ok 
as far as I can tell.

Today I have tried switching the RAM into a new slot, changing BIOS settings, removing 
my AGP card, and replacing my cordless mouse and keyboard with corded PS2 ones (all 
from suggestions I've read on here).  Nothing has worked.  I'm assuming it's a problem 
with the driver after mup.sys, but I don't know what that is and even if I did how 
to repair it or bypass it without the Windows console.  I have a suspicion that it's 
something to do with my AGP card because I have been having a very odd problem the 
past 5 months or so (and I bought my AGP card, a Raedon 9200, about 8 months ago) 
which involves the monitor apparently losing it's signal suddenly and without warning. 
 It only seems to happen when I'm actively using AOL Instant Messager (but I can't 
say for sure) and I think audio output stops at the same time (but again, I can't 
say that for sure).  Tried updating the vidcard drivers a while back but that didn't 
seem to stop the problem.  The only way I get around the problem is to manually turn 
off the power and turn it back on.

The only other odd thing that happened is that last night right after the mup.sys 
problem started, I turned off the computer power and was going to call it a night 
and about 20 seconds later, the computer turned on by itself.  I've never had that 
happen before and I don't even think it has that capability.  Problem with the power 
supply?

I'm running this system:

AMD Athlon XP processor 2000+ (1.67 GHz)
VIA KM 266
80 GB HDD
512 MB DDR (PC 2100)
AC '97 Audio
S3 ProSavage8 (integrated) [Radeon 9200 in AGP slot]

I've added the Raeon card, a cordless keyboard and optical mouse (using the PS2 ports), 
and a printer/scanner since I've had the computer.

This is extremely frustrating and I need advice!

[Reply or follow-up to this message]

I also joined the muppets.sys club today. I could give a detailed account of my woes but i will only give what is different: my problems started after trying to install a combo 2.0 usb / firewire card. upon installation, win xp home just blanked. i then went into this whirlwind of hell that everyone else has described. i also dont think it is mup.sys, but some other driver that installed itself during my card installation. i have tried to reset the escd, etc. etc, in bios to no avail. however, i AM able to get into safe mode. the last file safe mode lists is mup.sys, but it goes into it just fine. i am not sure what else to try, having done the bios things as others have suggested. i will let you know if anything works.


On Saturday, January 31, 2004 at 8:24 am, Nigel wrote:
>I joined the Muppets.sys club today, with a failed boot
>of winXP. Just like others user's I am unable to get past the boot screen, with or
>without the XP CD. I run a PCchips m810 v7 Mobo/AMD XP 1600, 256ram, NVidia Ti (64mb),
>Terratec DMX6fire sound. The only USB device connected to the PC at boot is my DSL
>modem. I cannot see a common fix in the current posts, but will try a few things
>and report back.

[Reply or follow-up to this message]

I see that this is a major headache for more than myself. I too have the mup.sys hang, will not boot from floppy (hangs) or CD. Tried safe mode but hangs at the mup.sys file. Windows XP hangs after about six passes of the progress bar. Eventually booted once using last successsful startup option but on shutdown and restart same problem. Tried changing BIOS settings, swapped the RAM modules, disconnected the hard disc, one of the CD drives but nothing works!! If I could get into DOS I would reformat the hard drive. Why is thsi such a problem?


On Saturday, February 7, 2004 at 4:14 pm, Shane wrote:

>Ok, I'm getting desperate here and any help I could get I would be extremely grateful 
>for.  I've tried to include as much information as possible.
>
>Last night WinXP was running very slow and locking up, which isn't too unusual as 
>I had a thumbnailed window with some large vid files open and a few other programs 
>running.  I probably hadn't rebooted in a day or so either.  I tried to restart 
but 
>it just kept locking up so I manually powered down, waited a few seconds, and powered 
>it back up.  As I recall, the last message that flashed on the screen was that my 
>cordless mouse was low on batteries.  On rebooting the black WinXP logo loaded, 
stayed 
>up for an unusually long time, and then restarted.  This time the "Windows failed 
>loading on a previous attempt" blah-blah screen came up.  Have tried load normally, 
>last known good config, and safe mode.  All just loop back into a reboot.  Safe 
mode 
>loading stops with mup.sys before rebooting.  I have an OEM Windows XP so I haven't 
>been able to use the Windows console to try and repair anything.  I originally thought 
>it might be a problem with the master boot record, but that seems to check out ok 
>as far as I can tell.
>
>Today I have tried switching the RAM into a new slot, changing BIOS settings, removing 
>my AGP card, and replacing my cordless mouse and keyboard with corded PS2 ones (all 
>from suggestions I've read on here).  Nothing has worked.  I'm assuming it's a problem 
>with the driver after mup.sys, but I don't know what that is and even if I did how 
>to repair it or bypass it without the Windows console.  I have a suspicion that 
it's 
>something to do with my AGP card because I have been having a very odd problem the 
>past 5 months or so (and I bought my AGP card, a Raedon 9200, about 8 months ago) 
>which involves the monitor apparently losing it's signal suddenly and without warning. 
> It only seems to happen when I'm actively using AOL Instant Messager (but I can't 
>say for sure) and I think audio output stops at the same time (but again, I can't 
>say that for sure).  Tried updating the vidcard drivers a while back but that didn't 
>seem to stop the problem.  The only way I get around the problem is to manually 
turn 
>off the power and turn it back on.
>
>The only other odd thing that happened is that last night right after the mup.sys 
>problem started, I turned off the computer power and was going to call it a night 
>and about 20 seconds later, the computer turned on by itself.  I've never had that 
>happen before and I don't even think it has that capability.  Problem with the power 
>supply?
>
>I'm running this system:
>
>AMD Athlon XP processor 2000+ (1.67 GHz)
>VIA KM 266
>80 GB HDD
>512 MB DDR (PC 2100)
>AC '97 Audio
>S3 ProSavage8 (integrated) [Radeon 9200 in AGP slot]
>
>I've added the Raeon card, a cordless keyboard and optical mouse (using the PS2 
ports), 
>and a printer/scanner since I've had the computer.
>
>This is extremely frustrating and I need advice!

[Reply or follow-up to this message]

Just to add a little bit to what I said before, I can boot from a CD or floppy but as I only have my OEM CDs my only option is to reinstall WinXP wiping out everything I have on my HD, which, if at all possible, I would like to avoid. I'm considering buying a new HD, installing WinXP onto that and making my old HD a slave, but I don't want to do that if I'll still have problems booting. Suggestions?

[Reply or follow-up to this message]

My computer died on Wednesday - I'm booting from twin 120gig RAIDed (0) SATA drives, and now does the normal get to mup.sys and reboot again.. Thing is, I found an old IDE drive, plugged it in and did a fresh install of XP, and it booted fine! Does this mean (please say it doesn't) that it's my RAID gone belly up? Don't entirely understand how that could be so, as it does start to boot off them - just doesn't get past mup.sys so they can't be entirely screwed.. Tried flashing the bios, moving/removing various bits (but since it boots fine on the IDE drive, I'm guessing that hardware isn't the problem).. Anyone got a clue how I can get into my RAID drives? Nothing amazingly important, but I'd still prefer not to lose them.. The IDE install of XP doesn't see them...

[Reply or follow-up to this message]

I have the exact same problem. My configuration is: AMD 2000+, GigaByte 7VAXP, Corsair 3200XMS, ATI Radeon 8500 128MB, WDC 40Gig HD, MDT 120Gig HD, Win 2000, MFC 7300C printer/scanner/fax, Logitech Elite Cordless Combo. Seems this problem happens to both win2000 and winXP. I've too have tried all solutions suggested here and nothing works. I can't even use a boot CD or floppy. I've stripped everything down to essentials, tried corded keyboard and mouse, switched cards, mem and cables around, disabled/enabled bios attributes, flashed upgraded bios everything I could think of except for replacing hardware. If it is a Hardware failure I haven't a clue what it could be. Any suggestions on how to proceed?


On Saturday, February 7, 2004 at 4:14 pm, Shane wrote:

>Ok, I'm getting desperate here and any help I could get I would be extremely grateful 
>for.  I've tried to include as much information as possible.
>
>Last night WinXP was running very slow and locking up, which isn't too unusual as 
>I had a thumbnailed window with some large vid files open and a few other programs 
>running.  I probably hadn't rebooted in a day or so either.  I tried to restart 
but 
>it just kept locking up so I manually powered down, waited a few seconds, and powered 
>it back up.  As I recall, the last message that flashed on the screen was that my 
>cordless mouse was low on batteries.  On rebooting the black WinXP logo loaded, 
stayed 
>up for an unusually long time, and then restarted.  This time the "Windows failed 
>loading on a previous attempt" blah-blah screen came up.  Have tried load normally, 
>last known good config, and safe mode.  All just loop back into a reboot.  Safe 
mode 
>loading stops with mup.sys before rebooting.  I have an OEM Windows XP so I haven't 
>been able to use the Windows console to try and repair anything.  I originally thought 
>it might be a problem with the master boot record, but that seems to check out ok 
>as far as I can tell.
>
>Today I have tried switching the RAM into a new slot, changing BIOS settings, removing 
>my AGP card, and replacing my cordless mouse and keyboard with corded PS2 ones (all 
>from suggestions I've read on here).  Nothing has worked.  I'm assuming it's a problem 
>with the driver after mup.sys, but I don't know what that is and even if I did how 
>to repair it or bypass it without the Windows console.  I have a suspicion that 
it's 
>something to do with my AGP card because I have been having a very odd problem the 
>past 5 months or so (and I bought my AGP card, a Raedon 9200, about 8 months ago) 
>which involves the monitor apparently losing it's signal suddenly and without warning. 
> It only seems to happen when I'm actively using AOL Instant Messager (but I can't 
>say for sure) and I think audio output stops at the same time (but again, I can't 
>say that for sure).  Tried updating the vidcard drivers a while back but that didn't 
>seem to stop the problem.  The only way I get around the problem is to manually 
turn 
>off the power and turn it back on.
>
>The only other odd thing that happened is that last night right after the mup.sys 
>problem started, I turned off the computer power and was going to call it a night 
>and about 20 seconds later, the computer turned on by itself.  I've never had that 
>happen before and I don't even think it has that capability.  Problem with the power 
>supply?
>
>I'm running this system:
>
>AMD Athlon XP processor 2000+ (1.67 GHz)
>VIA KM 266
>80 GB HDD
>512 MB DDR (PC 2100)
>AC '97 Audio
>S3 ProSavage8 (integrated) [Radeon 9200 in AGP slot]
>
>I've added the Raeon card, a cordless keyboard and optical mouse (using the PS2 
ports), 
>and a printer/scanner since I've had the computer.
>
>This is extremely frustrating and I need advice!

[Reply or follow-up to this message]

ok here is something strange. about 2 days ago, my roomate's computer stops working for no reason, and after some fiddling around we figure out that it is the dreaded mup.sys problem. our computers are networked. just today, i am in the middle of running windows and for no reason it just locks up. sure enough i reboot and it just keeps rebooting itself....now my computer has the mup.sys problem! what are the chances that both of our computers, each with very different specs and hardware, would get this problem within 2 days of each other after never having had a problem for 12+ months? neither of us recently added any hardware or software, except for partypoker.com, but i hardly think that would have anything to do with it. also, i have 2 partitions on one hd on my comp, each partition has xp pro. the first partition has the mup problem, the second partition works just fine. what the hell is with this problem? after reading all the posts, it appears everyone has a different solution.... pretty crazy.


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

I changed my CD drive and can now boot from CD but it still hangs when trying to boot up/install from CD. Also hangs when attempting to boot from a Win98 start up floppy. I am taking the problem to a terchnician as I do not know whether the problem is hardware or software. The discussion groups don't seem to throw up one definitive answer.


On Sunday, February 8, 2004 at 3:20 pm, Shane wrote:
>Just to add a little bit to what I said before, I can boot from a CD or floppy but
>as I only have my OEM CDs my only option is to reinstall WinXP wiping out everything
>I have on my HD, which, if at all possible, I would like to avoid. I'm considering
>buying a new HD, installing WinXP onto that and making my old HD a slave, but I don't
>want to do that if I'll still have problems booting. Suggestions?

[Reply or follow-up to this message]

I think it’s definitely bios to OS config problem. I was able to install Win98 on an old 1GB drive without any problems except that it’s not compatible with NFTS, so my other drives are still inaccessible. After in Win98 I tried to upgrade to Win2000 but it still hangs on the reboot. Then again maybe it is a hardware failure that just affects newer OS's. Can't figure this out.


On Monday, February 9, 2004 at 9:31 pm, Nick wrote:
>ok here is something strange. about 2 days ago, my roomate's computer stops working
>for no reason, and after some fiddling around we figure out that it is the dreaded
>mup.sys problem. our computers are networked. just today, i am in the middle of
>running windows and for no reason it just locks up. sure enough i reboot and it
>just keeps rebooting itself....now my computer has the mup.sys problem!
>
>what are the chances that both of our computers, each with very different specs and
>hardware, would get this problem within 2 days of each other after never having had
>a problem for 12+ months? neither of us recently added any hardware or software,
>except for partypoker.com, but i hardly think that would have anything to do with
>it.
>
>also, i have 2 partitions on one hd on my comp, each partition has xp pro. the first
>partition has the mup problem, the second partition works just fine.
>
>what the hell is with this problem? after reading all the posts, it appears everyone
>has a different solution.... pretty crazy.
>
>

[Reply or follow-up to this message]

I have a USB 2.0 multi-card reader on my system. when I placed two different USB devices into the reader or empty USB port, and rebooted, I got the blue screen, and mup.sys hang. I fixed the problem by unpluging the cardreader from the motherboard, rebooting, shutdown and reconnect the reader. It is working okay now.


On Wednesday, February 11, 2004 at 9:29 am, Also Frustrated wrote:
> I think it?s definitely bios to OS config problem. I was able to install Win98
>on an old 1GB drive without any problems except that it?s not compatible with NFTS,
>so my other drives are still inaccessible. After in Win98 I tried to upgrade to
>Win2000 but it still hangs on the reboot. Then again maybe it is a hardware failure
>that just affects newer OS's. Can't figure this out.
>
>

[Reply or follow-up to this message]

I too came in search of MUP.sys problems.. i had an odd situation. I installed some used memory and i got an error saying to load the DLL's for the kernel... so i was like "man, that's lame" so i switched the memory around, and got a different error. could not load windows (i forgot the reason) so then i took all the memory out, and put my 1 stick back into slot 1, and it started, but gave me the mup.sys routine. so i came her via google and tried all the problems... the switching the memory around had already been done, but i tried again.. no luck.. disabled mup, no luck, unplugged USB devices, no luck, took out pci cards, no luck.... finaly reset bios defaults... worked fine.. i then realized that i had changed the bios settings earlier (to boot from cd first)... and didnt change it back. "Go team BIOS!"


On Wednesday, January 14, 2004 at 12:06 pm, scamquist wrote:
>Same problem. Restored default BIOS, rebooted and everything worked.
>
>

[Reply or follow-up to this message]

I have the same problem that you all have. Mup.sys is the last thing I see when trying to go to safe mode. I got my XP to launch when I removed my ½ year old 120GB Hard Drive. When I got back to XP I had to reinstall graphic drivers. If I try to put my 120 HD back to my PC it hangs again and if I start XP in normal mode the last thing to see is the "Windows is now starting up..." and thats all. Has anyone solved how to get the device that hangs your XP to work?


On Wednesday, March 12, 2003 at 9:12 pm, Brian wrote:
>If you have read any of my problems, (computer hangs all of the time) then you should
>know all about the problem. I booted it today, (still not fixed) into safe mode.
>As you might know, Windows XP safe mode boot tells you whats going on. When it got
>to Mup.sys, it seems to have stopped responding. None of the lights on the keyboard
>work. Nothing changes on the monitor. BUT, I can hear the clicking of the hard drive,
>and the little hard driver light is on.

[Reply or follow-up to this message]

I thought that I'll give you some more info. I have logitech wireless keyboard and mouse but I think It's not the problem. 1 day before this "mup.sys hang up" happened I had some problems with playing video and music files. They were running slow and "stuttering". At the same time my Logitech keyboard started to bug. My quick buttons were not working properly. They didn't perform the actions they were supposed to perform. The hang up happened when I yesterday clicked "yes" to microsoft auto update. After the update was ready it wanted to restart and after that it hung up. After the hang up and removal of my 120GB HD all these problems were solved. But now my 120GB HD doesn't work. It should be physicly fine 'cause I use diagnostic tools etc. So, with these additional infos I hope theres someone with same kind of problem and HAS SOLVED it. I want my secondary HD back to life!!!


On Thursday, February 12, 2004 at 4:12 am, Fisu wrote:
>I have the same problem that you all have. Mup.sys is the last thing I see when trying
>to go to safe mode. I got my XP to launch when I removed my ½ year old 120GB Hard
>Drive. When I got back to XP I had to reinstall graphic drivers. If I try to put
>my 120 HD back to my PC it hangs again and if I start XP in normal mode the last
>thing to see is the "Windows is now starting up..." and thats all. Has anyone solved
>how to get the device that hangs your XP to work?
>
>

[Reply or follow-up to this message]

Well if that's so then why my XP loads perfectly when I remove my 120GB Hard Drive??? I have also suspected that it might be a graphic card or driver problem (cause when I took my secondary HD away from my PC and XP loaded, I had to reinstall graphic drivers) but this doesn't explain why my XP loads when my other HD is not connected....


On Friday, February 6, 2004 at 2:35 pm, MM wrote:
>
>People, don't you realise that the driver which loads after mup.sys creates this
>issue? And that would be - the AGP VGA card in most cases.
>
>Either you have a cheapo AGP card, probably on-board with damaged controller or anything
>in that sense... or ... I'm totally wrong :-)
>
>MM
>

[Reply or follow-up to this message]

I'm quessing that it's a driver issue... I'm in a same situation right now. My secondary 120GB HD doesn't work. If it's connected to my PC, XP will hang up to "windows is starting up..." screen and in safe mode to mup.sys --> but I think it hangs to the next .sys comming up. If I can somehow overcome this problem I will let you know.


On Monday, February 9, 2004 at 1:46 am, Catherine wrote:
>My computer died on Wednesday - I'm booting from twin 120gig RAIDed (0) SATA drives,
>and now does the normal get to mup.sys and reboot again..
>
>Thing is, I found an old IDE drive, plugged it in and did a fresh install of XP,
>and it booted fine!
>
>Does this mean (please say it doesn't) that it's my RAID gone belly up? Don't entirely
>understand how that could be so, as it does start to boot off them - just doesn't
>get past mup.sys so they can't be entirely screwed..
>
>Tried flashing the bios, moving/removing various bits (but since it boots fine on
>the IDE drive, I'm guessing that hardware isn't the problem)..
>
>Anyone got a clue how I can get into my RAID drives? Nothing amazingly important,
>but I'd still prefer not to lose them.. The IDE install of XP doesn't see them...

[Reply or follow-up to this message]

I'm heading down the power route myself (new PSU arrives tomorrow) I realised that (muppet that I am) I haven't upgraded my PSU in the last 7 years, so here I am trying to run an Athlon + gubbins from a 235W supply.. My suspicions arose when I plugged everything in, and the new IDE drive had trouble booting at mup.sys, but if I unplugged the RAID disks again, it went in fine.... I'll report back if it works.. plus a number of posts suggesting that low power causes all sorts of wierdness


On Thursday, February 12, 2004 at 7:17 am, Fisu wrote:
>I'm quessing that it's a driver issue... I'm in a same situation right now. My secondary
>120GB HD doesn't work. If it's connected to my PC, XP will hang up to "windows is
>starting up..." screen and in safe mode to mup.sys --> but I think it hangs to the
>next .sys comming up. If I can somehow overcome this problem I will let you know.
>
>

[Reply or follow-up to this message]

But how can it be that my pc worked "almost" fine for ½ a year before this f*ck up....


On Thursday, February 12, 2004 at 7:24 am, Buff wrote:
>I'm heading down the power route myself (new PSU arrives tomorrow) I realised that
>(muppet that I am) I haven't upgraded my PSU in the last 7 years, so here I am trying
>to run an Athlon + gubbins from a 235W supply.. My suspicions arose when I plugged
>everything in, and the new IDE drive had trouble booting at mup.sys, but if I unplugged
>the RAID disks again, it went in fine.... I'll report back if it works..
>
>plus a number of posts suggesting that low power causes all sorts of wierdness
>

[Reply or follow-up to this message]

Mine was working fine for 3 months too, I'm guessing that tolerances change as time goes by, perhaps an update makes some bit of hardware consume slightly more power, and it just reaches it's limit and stops working.. Of course this could all be total rubbish.. I'll find out when I get my new bits tomorrow..


On Thursday, February 12, 2004 at 7:53 am, Fisu wrote:
>But how can it be that my pc worked "almost" fine for ½ a year before this f*ck up....
>
>

[Reply or follow-up to this message]