I need help trying to figure out why my computer keeps locking up. My computer locks up within a few hours to a few days. 9 out of 10 times it locks up when I'm playing a video. The other times it seemed like it locked up when I was just simply moving the mouse. When it locks up, the entire screen displays one single color (blue or black or green or white or etc). The mouse and keyboard are dead (no lights). I cannot gain access via ssh. The power light and fans keeps running. I can push the reset button and it'll reboot normally.

I'm running Arch64 with the nvidia driver (185.18.31-1) but I've had the same problem in Ubuntu and Fedora. I have a ECS 8200A motherboard (onboard Nvidia GeForce 8200) and AMD Athlon 64 X2 5050e.

I've tried the following solutions I found thru Google searches:

-Reset cmos

-Gave nvida and hda intel their own irq's

-Tried several kernel parameters including:
*idle=poll
*maxcpus=1
*all combos of noapic, irqpoll, and pci=routeirq
*noapic pci=assign-busses apicmaintimer idle=poll reboot=cold,hard
*noapic nolapic

-Changed "init display first" in bios from "pci" to "onboard"

-Ran memtest86+ for 12 hours with no problems

-Ran mprime for 2 hours with no problems

-Updated BIOS to latest version

-Disabled all unused devices in BIOS, CPU/PCI spread spectrum, and Cool 'n Quiet.

-Tried the beta version of nvidia module

-Tried adjusting the cpu voltage in the BIOS but that made my computer unbootable

I don't know what else to try. Any suggestions??