PC runs fine but shuts down after 10mins of "intense" gaming.

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Skittz

Reputable
Aug 29, 2015
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4,510
Evening all,

My Pc has recently had a few issues. I have resolved the others which arose when i put In some new ram at a different speed....I have been able to get all 4 sticks running at the same speed now and system stability (until games are involved) is now fine.

The issue I'm now faced with is that my PC will restart itself after around 10 mins of playing more hardware intensive games IE, Arkham knight, warframe, Alien Isolation, all of which it played flawlessly on Thursday night.

Specs are as follows:

AMD 8320 cpu @ stock with a zalman CNPS9500
16GB DDR3 (1333) Ram.
120 OCZ vertex 3 SSD
2TB storage drives, one hybrid, the other HDD.

HD 7950 DD GPU @ stock ( I know, terrible cooling)
G7 Psu @ 750W with 4 x 12v rails, 18A per rail

Case is a phantom 810 with 2 top mounted fans, 1 rear fan and one front fan.

running on windows 10 pro 64 bit.

Everything was running fine up until a couple of days back and now I cant use it for it's main purpose....typical for it to happen on a bank holiday eh?

Tests ran so far:

Furmark : GPU handled this and the PC didnt shutdown. max temp was 80C, still high, but workable.

prime95 : CPU handled this well, only hitting 50C.

Thanks in advance to anyone who contributes.
 
Solution
capt_taco
It's definitely not heat. If that were the case, it wouldn't restart, just shut down and be unable to restart for a few minutes.

I am still suspicious of the RAM. Not only because it is the part that was changed last, but because it sounds like you are using a mismatched set. Can you post the full specs? This is exactly the kind of thing that can happen when the RAM is not quite stable and you put it under load. Especially likely if you are using a mismatched set. It might work well enough while poking around in low-stress activities, but when it's taxed heavily the imperfections come out and everything comes unraveled.

You don't even need 16 GB for gaming anyway; 8GB ought to be fine. So I would try it with just the old set and just...
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capt_taco

capt_taco

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Aug 5, 2009
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It's definitely not heat. If that were the case, it wouldn't restart, just shut down and be unable to restart for a few minutes.

I am still suspicious of the RAM. Not only because it is the part that was changed last, but because it sounds like you are using a mismatched set. Can you post the full specs? This is exactly the kind of thing that can happen when the RAM is not quite stable and you put it under load. Especially likely if you are using a mismatched set. It might work well enough while poking around in low-stress activities, but when it's taxed heavily the imperfections come out and everything comes unraveled.

You don't even need 16 GB for gaming anyway; 8GB ought to be fine. So I would try it with just the old set and just the new set, and see if it goes back to being stable that way.
 
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Solution
S

Skittz

Reputable
Aug 29, 2015
2
0
4,510
I found that for whatever reason, my BIOS had set my RAM at 1600, which is the "native" speed for the hyper x (set that was just added) whereas my older set, the corsair xms3 didn't agree with that....underclocking the ram to run at 1066 did the trick and everything is running smooth again.
 
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