Looks to me like graphics card is possible overheating, try popping the
cover. And is the fan on the card still working?

Jerrye wrote:

> I recently installed a FX5500 256mg Graphics card and have had random freezes
> eversince, I thought it might be the power supply and I installed a Ultra
> ULT31558 500w supply, I still get random freezes.....any other ideas or is
> the Ultra not a good power supply, it seems stable on -- using HwDoctor.
>
> DFI AD77 mobo
> Amd XP 2gig
> 768 Ram
> 2 hard drives
> 2 DVD drives
> FX5500 256 Graphics
> Ultra Xconnect 500W Power supply
>
> Old Airforce