OK, this is the friend with the card thats locking up... aka the one with the system this entire post is about.
I just took off the heatsink on the GPU and on the memory. I wiped off all the thermal grease that was there and replaced it with new grease. While doing so i noticed that the memory grease was pitch black, hard, and stuck to the heat sink. The gpu grease was just like the stuff i put on there, silver and very soft.
After doing so I put it back in my system, Made sure that the power cord connected to the video card was by its lone some. I disabled on board sound, took out every other pci card, and disabled things that were unnessesary (1394 controller, usb controller, onboard NIC).
Started up a few things. UT2004 will not even load up, Just goes black and either my computer will lock up, or it will restart automatically. 3dmark 2005 will run for like 20 seconds, and then it will lock up completly.
CS source will run if i run the video stress test. I was running it on 1600x1200 no AA and no vertical v-sync. I also was running it with trilinear filtering. It will go all the way through the stress test and give me my average. My average just happens to be 78fps.
However as soon as i try to join a game or start one, same thing happens, it locks up.
Last night i put in an extra 80 gig bypassing the raid controller, and loaded up windows xp 64bit edition. It ran awsome in windows but as soon as i tried to load up ut2004 it locked up again. I am going to put the video card in another pc tomorrow and see what kind of results i get with that.
Just to clarify everything heres the specs of my pc:
Dual amd Opteron 242's @ 1.6ghz
Tyan tiger k8w board (s2875)
1gig of corsair ddr400 ram.. Registered with ECC
2 western digital 80gig with 8mb cache striped.
and the MSI geforce 6600 gt AGP.
soundblaster live (removed for testing)
ive tried the following software configurations too.
windows xp
windows xp sp1
windows xp sp2 (currently using)
directx 8,9,9b, and 9.0c
Every driver variation i could think of
About the only step i can take next is to put the card in another machine. My 5200ultra was working fine with this system though, so it must be somethign with the card. We'll find out tomorrow.