Random Crashing During Games

[drjman]

Alright, I am stumped. I am experiencing random crashes usually after about 10 - 15 minutes during games (BF2, World in Conflict, Quake wars, etc). I know, 10-15 mintues? Sounds like heat, but its not. all the temps are normal.

Rig:
E6600
EVGA 680i SLI current bios A1 model
2 GB dual channel OCZ Platinum XTC ddr2 800
8800 GTS 640mb
Fatal1ty extreme gamer sound card
Killer Nic
74GB Raptor 8MB cache
2 X 400 GB WD drives
Zalman 9700 cpu cooler
Vista home premium 32 bit


What i have done:
1. Memtest = OK
2. temps = ok (even under load)
3. tried 2 different sound cards
4. tried different gfx cards
5. tried everything on the ultimate boot cd = ok
6. reinstalled all drivers one by one
7. tried a different killer nic card

I have tried desperately to isolate the problem. i am pretty experienced with trouble shooting and i am at my whit's end. Any new ideas are welcome. The only thing i haven't replaced is the MOBO (which is the biggest pain to do), but it works fine in anything but games. EVEN rendering video. Windows error logs show nothing.

HELP!
Thanks in advance!

 

[JustaGeek]

Did you manually set all the frequencies, timings and voltages, especially for the memory, in BIOS?

 

[KFCrispy]

i used to have random crashing because my Kingston RAM wasn't very compatible with my motherboard. the computer shop guy even showed me how it worked fine for other motherboards but not mine, and i had Kingston replace it with a different manufacturer..

 

[drjman]

I haven't set the timings manuall, i will do that right now. i guess it could possibly be a sync problem.

to KFCrispy: this setup has been working fine for a long time and i have the exact same memory in a few different 680i mobos.

 

[JustaGeek]

Originally posted by: drjman
I haven't set the timings manuall, i will do that right now. i guess it could possibly be a sync problem.

to KFCrispy: this setup has been working fine for a long time and i have the exact same memory in a few different 680i mobos.

Remember to set the RAM voltage to the OCZ specs, too!!! (2.1V)

 

[drjman]

i just played for 20 minutes with no crashing...who knows?
my ram was at 1.8 so i set it to 2.1v but that was after my recent success. Hopefully it won't start again, but it probably will.
thanks for the help