Computer crashes under load.

DavidBarishev

Honorable
Dec 4, 2016
8
0
10,510
Hello all !
Around a year and a half ago, i upgraded my system from gtx 550 ti , to 970 g1 , and added Samsung 850 evo.
Everything was fine for a year, except couple of crashes hear and there, and sometimes didn't boot and made 3 short beeps, i mostly solved this by removing one ram stick and reinserting.

One day when i played my computer crashed, no blue screen, I tried to boot him up, and got short quick beeps when trying to boot. 
I was like , OK this has happened before so I got one ram stick out, and now the computer booted, was stuck on bios , and beeping every 30 seconds. 
I tried to unplug Hard drive , optical drive reader , every external phariperal and still same error- stuck on bios with long beeps every 30 seconds. 
I tried to boot without the GPU , which the computer did , and I was presented with this screen( I was using the onboard graphics),

il3Ha9yh.jpg


I waited till it finished, and the computer booted up normally.
When I tried to insert the graphics card the computer doesn't want to bot and I'm getting 1 long beep , and 3 short ones. 

I sent the card to RMA (stupidly i know), and they returned it to me as the gpu was fine.My friend then tested the card on his system and it worked fine.

When i got the card, i inserted it into the pc, booted fine , had a very long bios screen 1-2 minutes, then windows loaded fine.I Fixed this problem by updating my bios version (F5 -> F12),
but now when i try to play a game, my computer just reboot after 20 min or so (depends on the game).
When im not doing anything that requires high gpu usage the computer is stable.

I wanted to test my machine to eliminate other problems, so i used a stress test that consisted of Furmark, and prime95, while recording sensors with hwinfo.
My computer rebooted after around 9 minutes.

Even in my games, and in the benchmark my gpu would work fine, and i got good frame rate.
I attached the stress test log below, and here are my full computer specs : http://speccy.piriform.com/results/d027LREWndsbtpYgHyEv7iT
I'm using Antec 500w 80+ bronze, dont know the exacts model, but here is an image with some data (This might be very useful - it states all the power info): 
eJpQtjE.jpg


Temperatures are fine, i ran prime95 for 2 hours and averaged out on 65 c on the cpu.

To summarize:

  • * Computer crashing during gpu load
    * Cpu temperatures are fine(Gpu under full load while i was running the test was @ 80)
    * Computer stable when not doing anything gpu related
    * Gpu is 100% working

What is causing this ? I think my psu might not be giving enough power ?

Thanks in advanced.
 

Fusionxz

Commendable
Feb 27, 2016
66
0
1,630
Have you overclocked your GPU? Sometimes this can lead to instability, random crashes under load, unwanted artifacts showing up while gaming, etc (especially if you've done some voltage tweaking). Overclocking your RAM can cause this in some cases too. I've also heard some people have been sent that PSU with a short in the wiring for the 4-pin molex connectors and slight movement causes it to go dead and restart. Hope this helps!
 

DavidBarishev

Honorable
Dec 4, 2016
8
0
10,510


No i didn't overclock anything , all settings are at default.