Computer Shutdown Under Heavy Load

Ctibbitts

Honorable
Dec 1, 2013
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10,510
Hey Everyone,

I'm currently having an issue with my computer shutting down while under heavy load. I have narrowed the issue down to two separate problems, PSU or Overheating and so far I think it seems to be the latter but I'm looking for some more opinions to help diagnose and for future problems that might be similar.

Build:

Asus GTX 650 TI boost 2gb

Corsair Vengeance 8gb(2x4gb)

Western Digital WD AV-GP WD5000AVDS 500GB 32MB Cache SATA 3.0Gb/s 3.5" Internal AV Hard Drive Bare Drive

Cooler Master GX - 650W Power Supply with 80 PLUS Bronze Certification

MSI 970A-G46 AM3+ AMD 970 SATA 6Gb/s USB 3.0 ATX AMD Motherboard with UEFI BIOS

AMD FX-8320 Vishera 3.5GHz (4.0GHz Turbo) Socket AM3+ 125W Eight-Core Desktop Processor FD8320FRHKBOX

Symptoms:

Computer will shut down under heavy load (games such as LoL and BF4). However, the power button on my case will just flash and the fans will continue to run. When shutting down the monitors will cut out, and so will sound. Then the power light will flash and fans will continue to run. I can't immediately restart and I have to shut down the power completely before restarting after 5-10 minutes of waiting. So I was wondering if any of you guys would know what might be the issue that I'm currently facing.

Things I've Tried:

I've ran Prime95 and furmark and my computer shuts down after about 5-10 minutes of either one running. I've installed Core Temp and GPU-Z. Core Temp shows around 50C before shutdown, however when I'm going through BIOS its shows temps at 60C idle (I don't know which one is true). GPU-Z shows temperatures around 60C-70C. I don't get a blue screen, so I believe it's not the memory or HDD. Again, any help would be appreciated.
 
Solution

maxiim

Distinguished
Oct 28, 2009
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19,360
Make sure your heatsink is correctly seated and there isnt too much/too little thermal paste on there. Its most likely reaching its thermal limit and shutting down to prevent your CPU from frying. That PSU is good enough to power your system, so you could also check how much power your PC is pulling from the outlet, though thats the last thing I would check out.
 

avjguy2362

Honorable
Jun 21, 2012
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Solution

Ctibbitts

Honorable
Dec 1, 2013
9
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10,510


So the problem might be in the heatsink then? I've tried to reset it and that didn't seem to solve the issue. And how much thermalpaste is too much or not enough? I've never actually learned the proper amount. Also, how could I check to see how much power the PSU is grabbing? Thanks for the response by the way.
 

Ctibbitts

Honorable
Dec 1, 2013
9
0
10,510


Didn't mean to pick yours as the answer >.< But I did just order a new heatsink and fan/case. So I'm hoping both of your answers are correct. Thanks for the responses both of you! I ordered the Zalman one that's like 40ish bucks.