lukatce

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Mar 20, 2011
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18,510
What is problem hdd or psu to freeze pc on GPU (SLI) full load pc can hold 5 hours but when playing games or just using pc so random access/use it crash and when crash hdd led don't blink monitor still show picture with x-fi titanium is strange sound on integrated sound card there is no sound probably is hdd ? tested hdd hdtune,tune up disk check and don't find any error also memtest don't show any error. I had same problem with old build Q9450,mushkin redline 4GB 1000,5850 i kept only hdd,psu,sound card from old build

Gigabyte GA-990FXA-UD3 (1 month old)
Phenom 555 (1 Month old)
2x gtx 560 (Gigabyte GV-N56GOC-1GI) (1 month old)
Kingston Hyperx blu DDR3 8GB 1600 CL9 KHX1600C9D3K2/8GX (1 Month old)
Thermalright SIlver Arrow (1 month old)
Napajalnik LC Arkangel 850W (3 years old)
Western Digital Caviar Blue SE16 640GB SATA300 (3 years old)
Creative x-fi titanium (6 month old)
 

I have never heard of NAPAJALNIC as a PSU..I would suspect that the PSU is not able to supply all the power that your system needs. I recommend replacing it with a Quality 750 watt unit by Corsair, Seasonic, PCP&C, Enermax or Antec.
 

lukatce

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Mar 20, 2011
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18,510
Yeah sry PSU is LC Arkangel 850W strange is it crash also in idle. I sent psu and hdd to shop where i bought to check it and they said it didn't crash in 2 weeks (idk if is true)
 
"I sent psu and hdd to shop...they said it didn't crash" maybe they don't have 2x gtx 560 in their test system ? maybe their shop is colder than your room?

Could easily be power supply. Pull one of the gtx560s and see if it gets better. If not, leave one of the 560s out and also pull the sound card. Does it still hang? If not, try with both 560s in and the soundcard out.
 

lukatce

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Mar 20, 2011
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18,510
I don't have integrated video card so how can i get into win without gfx ?
it works good in heaven dx11 in SLI work for 5 hours but i didn't test it how long it would work until it freeze gpu1 90C° gpu2 75C° cpu ~40C°
i would need oscilloscope to test psu ? fans still working when it freeze sound looping when on external sound card when using integrated no sound at all could be mobo ? screen freeze (same picture all the time)
 

lukatce

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Mar 20, 2011
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18,510
PC freezed on stock (auto ram 1333 cl9) ram and cpu first 5 days even when i put ram on on 1600 and rest on auto it freezed oftenly after 1 week when i build it (1 month ago) it didn't crashed so much ram is now set on 1600 9-9-9-27 1.5 (on 1.65V (as ram is rated) it crash in 5 min and found errors in memtest cpu on stock and even bumping a little more voltage it freezed maybe it could be mb it have damage on ram slot when i unboxed it (1 ram slot don't lock in left side and no visual damage) using stick in second and fourth slot any idea why ram on 1.5v work and on 1.65v don't (as is stated for this ram) also i see in mb manual it write ram slots work only at 1.5v (also in bios there is only 2 speeds 1333,1600 and no 1800 idk why (latest bios F2)