This sounds like one of two things... either Power Supply is not up to the
job or the FX is overheating....

Suggest a 400W+ PSU...

Does the PC freeze up solid (with a repeating sound sample) and need a
reboot?
Check FX fan is OK first, mo/bo + CPU Temps, have a look at the case
cooling - try opening the case and touching the FX heatsink...

Try with the side off and a fan aimed at the FX... any better - get some
case fans - two at rear + one at front... ;-)

Guy

Should be able to run 3DMark Demo for hours without freezes....
Steven wrote:
I just upgraded to a gainward Ge-Force Fx 5200, 128mb, 8X AGP. And my
computer freezes a lot, usually when I'm playing games, like
battlefield 1942, or Unreal tornament, but it also freaquently
freezes when I'm watching movies too. I've tried the driver that
windows XP suggested and then tried the latest Detonator dirver
44.03. I've also uninstalled and reinstalled, and nothing has helped.
Does anyone have anyone suggestions?
What is a WHQL driver, is it different from the detonator?

Thanks