My CPU Temp goes over 100°C when playing games?

Ramblewolf

Reputable
Jan 22, 2015
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Whenever I play Games, such as Team Fortress 2, My CPU temp will Skyrocket over 100°C (It's usually around 70°C when idling), and I'm not sure why it's been doing this lately. This has been going on for about 4 or 5 months now, So I haven't really been gaming on the computer anymore due to this.. I can play for about an hour or 2 before my computer will shut itself off, and I'm sure it's because it's over heating. I replaced the case fan a few months back thinking it was the issue, But it solved nothing. Even with a Desktop fan pointed directly on my computer with the case off doesn't stop it from shutting down. This never happened before until I tried making my computer a little faster by using CCleaner, I believe it was, and after starting my computer up after that, It started giving me the BSOD, but eventually I got it working, But since then, It's always had this over-heating problem, Anyone have any suggestions? I'm new to any kind of Forum posting, so if you need any specs or something let me know what I need to tell you.
 
Solution
dude... it does look dusty 😛... it would be a good idea to totally disassemble and clean it.

At least, get a pressurized air can and:
1.- Take the CPU fan off and blow the dust in the cpu cooler fins.
2.- Clean the CPU fan as well and put it back.
3.- Make sure that back fan that is next to the CPU is actually blowing air inside. If not, unmount and change the direction.

Desired:
4.- Get thermal paste, take the CPU FAN off, take the CPU cooler off and clean both the cooler and the CPU, and apply new paste (just a small pea drop is fine) and put the cooler and fan back.
5.- Disassemble and clean the whole thing!.
6.- Get a new PC Case... one with better (or actual) airflow. At least 1 front fan for intake, one rear fan for outtake and...
What are computer specs?
Stock cpu cooler?
Is it dusty?

Probably just need a nice after market cooling solution for cpu.
You can try buying some thermal paste and removing the current cpu heatsink, then cleaning it and the cpu off, and re-applying paste.
 
70°C in idle is the worst I have ever read :O... I suggest stop playing games for now until you fix this or you may harm the CPU...

Also, besides what andy_man said... how's your airflow? what's the case fan setup you have, how many intake/outake fans you have?
 


I have an AMD Phenom 9750 2.4Ghz Quad Core Processor, AMD Radeon 6700 series Graphics card, 8 Gigs of Ram.. Uhmm... What other specs are important? xD
It shouldn't make a difference that my 8gb of ram are all 2gb sticks, right?
 


I always keep the case off due to the over heating problems.. but I have the Case fan, the CPU fan, and the Fan on the Graphics card.
 
we are assuming here that your CPU is using the stock CPU cooler, correct?...

I would do as andy_man said... buy thermal paste (arctic silver is good), take the cpu cooler off, clean it, apply TP and put it back...

Also... it looks like you only have 1 fan in your case, there is no airflow in your case... you need at least 1 front intake, 1 top outtake besides your 1 back outtake... and speaking of back fan... check that it IS taking air out.

No airflow = stagnant hot air inside the case... this messes even the best air CPU coolers
 


Well, My computer case itself doesn't seem to have any room for any of that... Dang, is there anyway I could send a pic or put a pic on here to show the inside of my case?
 
dude... it does look dusty 😛... it would be a good idea to totally disassemble and clean it.

At least, get a pressurized air can and:
1.- Take the CPU fan off and blow the dust in the cpu cooler fins.
2.- Clean the CPU fan as well and put it back.
3.- Make sure that back fan that is next to the CPU is actually blowing air inside. If not, unmount and change the direction.

Desired:
4.- Get thermal paste, take the CPU FAN off, take the CPU cooler off and clean both the cooler and the CPU, and apply new paste (just a small pea drop is fine) and put the cooler and fan back.
5.- Disassemble and clean the whole thing!.
6.- Get a new PC Case... one with better (or actual) airflow. At least 1 front fan for intake, one rear fan for outtake and one top fan for outtake.
 
Solution
Also... as part the minimal action needed:
3.b.- see if you can zip the power supply cables more to the top. The cables and the GPU are blocking hot air generated from the CPU to go up and reach the power supply fan... which I think is your only exhaust fan here.