PC turns off while playing games

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GhostCro

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Sep 4, 2013
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Hello

my PC turns of after playing games for half hour (APB, sims 3, WOW, PES 2013...)
I replaced PSU, cpu, cooler, motherboard, add new ram. So I changed whole pc and still it turns off. One more thing... When i watch videos on youtube after 20 min monitor and sound turns off and I am force to restart computer. My specs:

CPU: AMD Athlon 64 X2 4800+ 2.5 Ghz
GPU: Nvidia GeForce 9500 GT
RAM: 3 gb DDR2
Motherboard: GIGABYTE GA-MA74GM-S2H
PSU: 400 W
 
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GhostCro

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Sep 4, 2013
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hmmm I think its not gpu overheating but maybe im wrong... when i play games max temp of GPU is 55 and CPU max temp while playing is 60
 
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NiallA

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Aug 19, 2013
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10,520


You can use http://www.nirsoft.net/utils/blue_screen_view.html

Sometimes after these crashes, although you don't see a bluescreen there may be a dump file produced to give you a clue.
 
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GhostCro

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Sep 4, 2013
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ok. i disovred something i played APB with cputemp program running and temp are going up to 80, but i put new cooler and add new thermal paste
 
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cats_Paw

Splendid
Oct 19, 2007
3,237
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21,415
Seems like you have poorly applied thermal paste (the conectivity is poor). Also cleaning the cooler from dust with compressed air (while the PC is off!) is a good idea and getting a better fan to the cooler.
However, there is another reason why PCs turn off when playing games: Dieing PSU.

If your power supply is from a non-brand, its possible its of very poor quality, and if the PC has some time already it can be the reason why its turning off.
Its VERY important that you check if you have this problem becouse if it is, when the PSU finally dies, it will take some other componenets with it to the grave (in my case it took two GPUS arount 8 years ago).

 
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cats_Paw

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Oct 19, 2007
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Well, first deal with the CPU temp: Look at some Tutorials on how to apply thermal paste.
Its possible you put too much of it, or that the cooler is wrongly placed over the CPU (only partially touching the CPU).

Only after you can keep your CPU in the mid 60s as temp you should start worring about the PSU (since yours might not have a problem yet and be due to the CPU overheating).
 
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GhostCro

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Sep 4, 2013
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well cpu is used its not new. I watched some tutorial and some people said to just apply thermal paste on the middle of cpu and some said that i need to spread it all over cpu and im not sure what to do

 
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cats_Paw

Splendid
Oct 19, 2007
3,237
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21,415
Hard drives are not power intensive, but you might be overloading a certain rail in the PSU (especially if its low quality).

So, its not easy to really tell if this is the case.

However, I cant stress enought that a low quality PSU is just asking for trouble. My thermaltake PSU has 6... maybe even 8 years now and its still working with no issues (except a bit louder fan noise sometimes), so its a good idea to get a better PSU.

Thou I understand your first goal is to lower the CPU temperatures, ane perhaps you dont want to spend money on a rather old computer.
 
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