CPU very Hot

Hiesenberg · Aug 27, 2014

Hey Guys,

My Graphics Card recently died. I got the brand new GPU by RMA

But then I have found out that the PC shuts down automatically after 3-4 minutes of playing games.
I checked the temperature of CPU :
After boot up : 40-41C and during playing games it goes to 80+ and that's where I think the PC shuts down.
Under normal operation, PC works fine. It only shuts down when i play some intensive games

Now I'm really surprised to find such high temps for the CPU. Prior to my GPU dying, i use to get Idle CPU temp of about 31-33C and 50-52 under load. How come suddenly the CPU is getting very hot

Could you please help me with giving the reason for it.
Also appreciate the solution { hardware / software(doubt it) }

LukaBoki · Aug 27, 2014

What are your system specs?
Are you using the stock cooler that came with the CPU?
How often do you replace the Thermal Paste?
When was the last time you cleaned you PC?

Delroy Monjo · Aug 27, 2014

Read this thread: http://www.tomshardware.com/answers/id-1921786/max-8320-temperature.html

predator-152 · Aug 27, 2014

When you changed the old CPU with the new one, did you check that the thermal paste was applied correctly?

LukaBoki · Aug 27, 2014

The GPU probably died because of the bad PSU.
The Corsair CX series of PSUs uses really cheap capacitors that can't output the power they state they can(600W in your case) for a long period of time. When you do intensive games,the 280X consumes a lot of power.The CX isn't able to give the amount of power the 280X needs and eventually,the GPU will die.
You will probably need a new PSU and a new GPU.
Tier One,Tier Two Class A and Class B are recommended:
http://www.tomshardware.co.uk/answers/id-1804779/power-supply-unit-tier-list.html
Make sure that you're using enough watts for your system:
http://www.realhardtechx.com/index_archivos/Page362.htm
And also,let's hope that none of the other components are damaged.
All the best.

Hiesenberg · Aug 27, 2014

LukaBoki :

My GPU was damaged while moving the PC. I don't think the problem is with PSU.I have been gaming heavily previously and never faced any issues.
Issue currently is due to the high CPU temps .
Any suggestions on the cooler front

Hiesenberg · Aug 27, 2014

predator-152 :

Only changed the Graphics Card. I'm still using the same old CPU FX-8320.
No idea about the thermal though. Why and How to use it ?

LukaBoki · Aug 27, 2014

You need to use the Thermal Paste if you want to drag heat away from your CPU more efficiently.
Are you using the stock cooler?

predator-152 · Aug 27, 2014

Hiesenberg :

You need the thermal paste (which is located between the CPU and the Cooler) for dragging the heat from the CPU to the Cooler, so your CPU will not warm up too much.

I know this maybe sounds weird, but the new GPU is bigger than the older one?

And if yes, how much is your PC Case size? Maybe it could be a ventilation problem, and with the new graphic card the CPU cannot cool down as it did before.

LukaBoki · Aug 27, 2014

predator-152 :

Hiesenberg :

I know this maybe sounds weird, but the new GPU is bigger than the older one?

And if yes, how much is your PC Case size? Maybe it could be a ventilation problem, and with the new graphic card the CPU cannot cool down as it did before.

He has a Corsair 300R,so I don't think that the airflow/ventilation is the problem.

Hiesenberg · Aug 27, 2014

predator-152 :

Hiesenberg :

You need the thermal paste (which is located between the CPU and the Cooler) for dragging the heat from the CPU to the Cooler, so your CPU will not warm up too much.

I know this maybe sounds weird, but the new GPU is bigger than the older one?

And if yes, how much is your PC Case size? Maybe it could be a ventilation problem, and with the new graphic card the CPU cannot cool down as it did before.

It is same GPU, just got brand new after RMA'd.

Any ideas on the thermal paste options and which are the good ones and economical

LukaBoki · Aug 27, 2014

Arctic Silver 5 or Arctic Silver MX4 are pretty good Thermal Compounds.

Joseph DeGarmo · Aug 27, 2014

I purchased the Antec Formula 7 diamond compound thermal grease from Best Buy and my CPU idle temps dropped from the mid 50s to the mid 40s and gaming temps fell from the lower 80s to lower 70s. It comes with a spreader tool and the compound is very thick, but it does what it's intended to do nicely.

geosh · Aug 27, 2014

It's a guess, but if the gpu got damaged by taking a hit when moving, chances are that it was also enough to release or move the cpu cooler in its bracket a bit. I would try to check out whether that's the case.
Sure, you want to take the cooler off, check it for damage and reseat it properly once you get that thermal compound eventually. But for now, IF NOTHING IS OBVIOUSLY WRONG AND NO BRUTE FORCE IS NEEDED, it might just be enough to refasten the cooler without actually taking it off

Hiesenberg · Aug 27, 2014

I go the PC technician (a friend) coming in tomorrow.
Will update you guys on the issue and also will buy that thermal paste if required

LukaBoki · Aug 27, 2014

No problem.

predator-152 · Aug 28, 2014

Hiesenberg :

Hi Hiesenberg,

how about your PC, is it working well now?

Hiesenberg · Sep 1, 2014

predator-152 :

Hey Guys,
sorry for the late reply. was out on a weekend.
So the latest update on PC is :-
I got the PC working up after my friend applied some thermal paste on CPU.
But still the CPU gets to heat up lot ~70-74 C when playing games like Far Cry3. i was able to play the game for a day.
When i resumed to start the PC yesterday, again the same issue is coming up. These is no video output coming up on the TV. This was the same issue I had with the my previous Graphics card and then I got it replaced with a new one.
I'm really worried now whether again the new Graphics card got damaged or is there an other issue with electricals / in some other part of PC.

predator-152 · Sep 1, 2014

At this point, I don't believe that is a GPU fault, I think that it could be a motherboard problem.

Is it still under warranty?

Hiesenberg · Sep 1, 2014

predator-152 :

I also think so it is a MB problem.
Just a final check i'll do to check whether the new Graphics Card works with other Motherboard.

and yes, i have all the system under warranty

predator-152 · Sep 1, 2014

Yes, the best thing to do now is to test the graphic card with a different system as you said.

If it works correctly, you may send the motherboard to the warranty

geosh · Sep 1, 2014

Btw, on what voltage are you running the cpu?

Hiesenberg · Sep 2, 2014

geosh :

How do i check the voltage of CPU ?
I live in India and we have standard 230V

predator-152 · Sep 2, 2014

Hiesenberg :

You can check it on your BIOS or by installing a software like CPU-Z

Hiesenberg · Sep 2, 2014

predator-152 :

The PC is not showing any video as of now.
So will be able to check the using BIOS or CPU-z once i sort out this issue

CPU very Hot

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