BSOD - Possibly Mobo or PSU?

[Hunt]

So I'm experiencing the dreaded BSOD and I'm at a bit of a loss what's causing the problem.

Current setup:
AMD X2 555 BE @ stock speeds
Gigabyte MA790FXT-UD5 (refurbished)
4GB Corsair XMS DDR3 1600
40GB Intel SSD V-series
500GB Seagate 7200.11 storage drive
Sapphire Vapor-x 5770
Fractal Design Tesla 650w PSU (manufactured by ATNG)

Starcraft 2 is a guaranteed crash within 20mins of playing. Sometimes it's a crash to desktop, sometime it's a BSOD. I've been getting random BSOD's as well, sometimes while browsing the net, sometimes while using iTunes.

I've tried to narrow down the issue. I've checked all my hardware to make sure it's all connected properly and the fans are working. Temperatures seem reasonable, around 40 cpu idle, 55 cpu stress. GPU around 50idle, 70 gaming, but 90 during Furmark. While running Furmark I didn't experience any crashes though.

Voltages seem ok. CPU ranges from 1.01 to 1.36 (think this is AMD cool n quiet, not sure though). +3.3V rail varies from 3.33 to 3.36. +12V rail varies from 12.25 to 12.32. These are values from Everest that I logged during regular use and through a BSOD.

I'm starting to think that it's either the motherboard or the PSU. While the voltages seem reasonable, is it possible that ripple/regulation is causing the issues?

I've never been able to stably overclock the CPU at all, which again could be the motherboard or PSU. The chip will unlock to 4 cores and run for a few days, but will crash. I haven't had any luck just overclocking on 2 cores by upping the multiplier.

Any insight would be greatly appreciated.

[Zero82z]

If you aren't experiencing any issues while stress-testing then I'm inclined to believe it's a software issue. I don't know what CPU stress test you used, but Furmark will certainly put more of a load on your PSU than gaming would, so that possibility is ruled out.

[headsh0t]

Run Memtest for 12 hours and see if it finds any errors.

[KaptCrunch]

bad HDD cable or loose power connector

[crazyhorsejohnny]

Make sure you have proper voltage on RAM. Then run Memtest.

[_dangtx_]

if prime95 is stable as well while looping 3dmark and such in the background? software,probably

interesting choice of psu :)

[Hunt]

Originally Posted by _dangtx_

if prime95 is stable as well while looping 3dmark and such in the background? software,probably

interesting choice of psu :)

It was a package deal from Mattlef to match the Fractal Design Refine 2 case. Figured it was better than my OCZ modXstream 600w, but now I'm not so sure.

I've ran memtest for about an hour, should probably run it longer. I'll give that a try, as well as prime95 and 3dmark. That sounds like it would crash a healthy computer though, haha.

If all that works, I'll just reinstall the OS (Win 7 64bit).

It takes a ridiculous amount of time to track down computer problems. ugh

[_dangtx_]

meh, when in doubt i pop open everest, nothingthere prime....if it doesnt crash and or heat up real quick i go for furmark, if nothing yet just to make sure lazily reboot and leave memtest do its thing

now, any and all errors are bad, but one in so many passes doesnt explain your crashes :)

hell i got a puter that will fold day and night but crash prime almost imediately

[Zero82z]

Originally Posted by Hunt

Figured it was better than my OCZ modXstream 600w, but now I'm not so sure.

It is better.

[DCCV44.2223]

Have you tried running with a clean boot to eliminate software issues?

How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7