re: Re-Enabling ACPI in my bios fixed it for me.
Sunday, March 7, 2004 at 5:08 pm Windows XP Annoyances Discussion Forum
Posted by Ne1scott
(2 messages posted)
This happened to me last night. After trying every possible method of booting I
googled "mup.sys" and started reading about it. I read through almost all of the
posts on this particular thread and was about to try the recovery console...or replacing
mup.sys...or removing all of my PCI cards....when I read a post that talked about
ACPI. So I went into my BIOS and enabled ACPI in the power management screen. The
system then booted up normally without a hitch. I too am using an AMD Athlon XP
2100...and Maxtor hard drives....but it sounds like the ACPI BIOS option may be the
solution...normally I would always disable anything to do with power management.
BTW: Linux's ACPI driver may not be recognizing the ACPI version the BIOS is using
which might explain why one user's Linux machine still worked fine. ACPI starts
immediately after mup.sys. Maybe if you have some option set in the OS for win2K
or winXP, then something is configured to rely on the ACPI driver starting. If your
BIOS isn't responding properly to the ACPI driver, then maybe this is causing all
of the system hangs. Moving RAM modules would affect the BIOS detection configuration
data so it might be forcing other re-detections ...that might be why moving the RAM
modules worked for some people and moving/removing PCI cards worked for other people.
ALL I know is that I'm glad I turned ACPI back on before carving up my system with
the recovery console or any other hack workarounds. My system is running Windows
XP Pro on an Epox 8KHA+ (KT266A) motherboard (Award BIOS) with 512MB of PC2100 DDR
(2 x 256) and an AMD AthlonXP 2100+ CPU. A 120 GB Maxtor 6Y120PO EIDE, 80 GB Maxtor
6L080L4 EDIDE, a Toshiba DVD-ROM and a Memorex 52x24x52 burner.
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.
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 |  | re: Re-Enabling ACPI in my bios fixed it for me. (Ne1scott: Sun, Mar 7, 2004, 5:08 pm) |
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