re: Mup.sys? Hangs but not? Wha's happening?
Thursday, January 15, 2004 at 8:45 pm
Windows XP Annoyances Discussion Forum
Posted by dustin
(1 messages posted)
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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 |  | re: Mup.sys? Hangs but not? Wha's happening? (dustin: Thu, Jan 15, 2004, 8:45 pm) |
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