re: Mup.sys? Hangs but not? Wha's happening?
Saturday, January 17, 2004 at 9:05 pm
Windows XP Annoyances Discussion Forum
Posted by Sean
(2 messages posted)
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!!!
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