PSU related problem? Corsair 1000watt?

[bsan89]

Spec:

[cpu]- i7 920
[os]-vista 64
[hdd]- wd 640gb raid 0
[ram]- corsair 1600mhz 6gb
[gpu]- gtx 285 ssc
[psu]- corsiar 1000watt
[mobo]- Asus Rampage II Extreme
[heatsink]- CM V8
[Case]- Silverstone TJ07


Problem:

About 10-20min in-game I would get a solid color overlay and it would just completely freeze up my whole system. I don't like to reboot every 10-20min.

this only happens in GAMES. Movies, Doc, wed browsing everything else is 100% OKAY!

No BSOD. Just a Green or Color Screen freeze.

Trouble shoot:

-I tried different games. (Some last longer than other but same issue occurs. It can goes from 1-2hr to 10-20min)

-I monitor the temperature through "real temp, evga precision, and everest. All temp is in a reasonable range.

-I swap the GPU in different PCI-E x16 slot.

-Uninstall & "Driver Sweep" GPU drivers. Reinstall drivers.

-Everything is DEFAULT. No OC on anything.

-Tried a different 6pin pci-e connect for GPU.

-Updated almost EVERYTHING. GPU, Bio's, etc.

Note:

+ Due to reading much thanks to google.
I got a feeling it could be my PSU or ASUS mobo.

+Maybe I got a crap mobo from ASUS.

+Maybe I got a bad psu thats not giving the power require to the gpu.

Any idea please?

 

[ainarssems]

check 12V line voltage while running prime95 + furmark at the same time.You can do this in everest or even better would be using DMM drectly on video card plug. If it drops below 11.4v PSU might be Your problem.

But I would think it is more likely to be video card that starts to give errors when heats up even if it is within limits. Try adding extra cooling to video card and/or underclock video card and see if problem goes away/reduces.