P4C800E-Dlx always wants to hibernate - Help?!?

[Noozer]

Kind of an emergency here as the wifes PC is giving us trouble...

First of all, the problem...

We're doing some spring cleaning and moved the computer to the other corner
of the room. The PSU was switched off before any cables/etc were unplugged,
etc. so the mainboard was definately powered down. Once the PC was set up in
the new location we had a few problems... Mouse and keyboard didn't seem to
work and the PC goes into hibernation as soon as Windows is booted up. There
were absolutely no changes to the PC except that some of the USB cables may
have ended up in different USB ports that before.

As far as troubleshooting goes, I've tried disconnecting everything except
power and monitor and still Windows boots and then hibernates. After
reseting the BIOS, it seems that the keyboard and mouse are working,
although DEL doesn't seem to take us to the CMOS settings, but F8 will get
us the BIOS boot device menu.

Booting Windows into safe mode works normally... Mouse and keyboard are fine
and PC doesn't want to hibernate.

Mainboard - P4C800E-Dlx v2 mainboard with 1017 BIOS
CPU - 2.6Ghz P4 Northwood
Ram - 2x 512meg Kingston CL2 PC3200
Video - Matrox G550 dualhead 32meg AGP card
Sound - USB Microsoft DSS80
Mouse/Key - Logitech Cordless Desktop Pro
Other:
- ATI PCI TV Wonder TV Tuner
- Realtek 8139 PCI NIC

Can anyone guess what's happening, and more importantly how to fix it?

 

[Noozer]

the new location we had a few problems... Mouse and keyboard didn't seem to
work and the PC goes into hibernation as soon as Windows is booted up. There
were absolutely no changes to the PC except that some of the USB cables may
have ended up in different USB ports that before.

Found the problem... Had the UPS plugged into the wrong COM port and the PC
thought that the power had gone out, so was hibernating as it should.

 

[DanO]

Glad you found it. That was an interesting problem. The solution makes
perfect sense. I'll have to squirrel that one away for the future...