Why does my CPU overheat?

danielbudimann · Oct 23, 2016

Hi

I read many cpu overteam threads and applied everything I could.
My CPU is overheating really fast, over 100 degress and crashes then after a while, if I use my pc. Sometimes after hours sometimes after minutes. I suppose this is the cause for all my computers recent crashes. (My old graphic card was responsible for many BS, which almost dissapeard after replacing it.)
And also everytime I boot, I get the CPU overtemperature Error.

I checked if the cpu is correctly in the socket. And the Fan is correctly and imovable mounted and totally clean.
I am going to replace my thermal paste but I simply don't think it reduces temp for 40 degrees or more.
Idle state is from 40 degrees to 80 degrees. Directly after booting.

I am OC. My friend did it. I don't know how to turn it off. Yet it worked before 2 years fine. So I suppose it can't be it. And I don't know how to turn it off. (Delete AI suite 3) Doesn't change anything in temps.
Now since I had the computer for 2 years without any problems I question myself wheter it's:
- Cpu broken.
- Motherboard reading/reporting temperature wrong.
-BIOS reporting temp wrong.
-else

How can I check which component is the problem, without changing them with other components?

Thanks a lot.

Specs:
Boot Drive: Samsung SSD 840 EVO 250GB
PSU: Dark Power Pro 650 WATT 80 plus Gold
Maximus VI HERO Motherboard
Windows 10 Pro 64-bit (10.0, Build 10586)
i7-4770K CPU @ 3.50GHz (8CPUs), ~ 3.50GHz
16384MB RAM
NVIDIA GeForce GTX 770 (replaced same model once)

Thanks a lot!

weberdarren97 · Oct 23, 2016

Let's undo your overclock. Get into BIOS setup, load optimized defaults, save and restart.

scout_03 · Oct 23, 2016

do a cmos reset to go back to bios default settings also did you repaste when you have move the cooler it look like it is not doing is job and fan must spin at full speed to cool cpu and could not so repaste using mx2 or mx4 since they do not need cure time and reseat cooler in also did you overclock on the oem cooler or a aftermarket cooler .

Martell1977 · Oct 23, 2016

Proper installation and application of the heatsink, fan and thermal paste can make a huge difference. Start with reapplying the paste, I recommend Arctic MX-4, it's non-conductive and easy to apply.

What CPU cooler do you have? Make sure the fan is spinning freely, you can do this by spinning it with your finger, there should be no resistance and the fan should "bounce" back and forth a little before stopping.

As for the OC, you can remove it by resetting the BIOS, just take out the CMOS battery for a minute or 2 and when you put it back in, everything should run at default. but I'd start with the paste first.

geofelt · Oct 23, 2016

Any properly mounted cooler should show 10-15c. over ambient at idle.
Perhaps you cooler has come loose.
If you nudge it, does it wiggle?
Are all 4 pushpins through the motherboard and locked?
Is the cooler fan free and spinning?

If you have a stock intel cooler, here is my instructions on how to properly mount it:
----------------how to mount the stock Intel cooler--------------

The stock Intel cooler can be tricky to install.
A poor installation will result in higher cpu temperatures.
If properly mounted, you should expect temperatures at idle to be 10-15c. over ambient.

To mount the Intel stock cooler properly, place the motherboard on top of the foam or cardboard backing that was packed with the motherboard.
The stock cooler will come with paste pre applied, it looks like three grey strips.
The 4 push pins should come in the proper position for installation, that is with the pins rotated in the opposite direction of the arrow,(clockwise)
and pulled up as far as they can go.
Take the time to play with the pushpin mechanism until you know how they work.

Orient the 4 pins so that they are exactly over the motherboard holes.
If one is out of place, you will damage the pins which are delicate.
Push down on a DIAGONAL pair of pins at the same time. Then the other pair.

When you push down on the top black pins, it expands the white plastic pins to fix the cooler in place.

If you do them one at a time, you will not get the cooler on straight.
Lastly, look at the back of the motherboard to verify that all 4 pins are equally through the motherboard, and that the cooler is on firmly.
This last step must be done, which is why the motherboard should be out of the case to do the job. Or you need a case with a opening that lets you see the pins.
It is possible to mount the cooler with the motherboard mounted in the case, but you can then never be certain that the push pins are inserted properly
unless you can verify that the pins are through the motherboard and locked.

If you should need to remove the cooler, turn the pins counter clockwise to unlock them.
You will need to clean off the old paste and reapply new if you ever take the cooler off.
----------------------------------------------------------------------------------

danielbudimann · Oct 23, 2016

weberdarren97 :

Now the computer starts on 100 degress and stays on 80.

"do a cmos reset to go back to bios default settings also did you repaste when you have move the cooler it look like it is not doing is job and fan must spin at full speed to cool cpu and could not so repaste using mx2 or mx4 since they do not need cure time and reseat cooler in also did you overclock on the oem cooler or a aftermarket cooler ."
- I have a stock cooler and it's spinning on 100% according to my programm.

"Proper installation and application of the heatsink, fan and thermal paste can make a huge difference. Start with reapplying the paste, I recommend Arctic MX-4, it's non-conductive and easy to apply.

What CPU cooler do you have? Make sure the fan is spinning freely, you can do this by spinning it with your finger, there should be no resistance and the fan should "bounce" back and forth a little before stopping.

As for the OC, you can remove it by resetting the BIOS, just take out the CMOS battery for a minute or 2 and when you put it back in, everything should run at default. but I'd start with the paste first."
- I'll doublecheck

"@geofelt"
- I'll doublecheck

Thanks for the fast answers.

weberdarren97 · Oct 23, 2016

Starts on 100C? Sounds like the cooler is not seated properly.

Is the CPU fan spinning at a reasonable speed? Actually look at the fan.

geofelt · Oct 23, 2016

Just to be certain, are we talking 100c, or 100f?
100F is not usually a problem.

danielbudimann · Oct 23, 2016

weberdarren97 :

The fan ironicly moves the fastest of all the fans. But still seems slower than one would expect it to move. (It still looks like one solid disk not many wings)

BTW: MoBo is chilling it on 25C all the time...
It starts at 100C not Fahrenheit.
Now I doublechecked and saw that I mounted the fan upside down.
Also that I could move it a little after "intensly" fouling around with it.
PC now started several times around 80C and went down on 70C when Idle. 5 min later it stays on 60C.

I tested it with a program:
Start Origin -> 80 degrees.
Start BF1 -> 90 degrees.
Close both applications -> 70C after a while it comes down to 60C

The thermal paste is applied poorly. yet I don't think it's the 40+ degrees differential I need/would like.

weberdarren97 · Oct 23, 2016

90C while gaming is too high. May I recommend the Cooler Master Hyper 212X?

danielbudimann · Oct 23, 2016

weberdarren97 :

I can imagine it would solve this issue.
However, it suddenly started after working fine for 2 years. Everything is 3 years old.
So if I upgrade my formal "beast". I'd replace the cpu and mobo. But I am trying to avoid this currently. But I am defenitly going to replace the thermal paste.

scout_03 · Oct 23, 2016

that is realy to high cooler is not doing is job .

danielbudimann · Oct 23, 2016

Can I undercloack somehow?
Or give the cpu less voltage?

EDIT:
There is almost no airflow coming from the vents.

scout_03 · Oct 23, 2016

recheck if cooler if well seated until you could do the repair to avoid further issue .

danielbudimann · Oct 23, 2016

scout_03 :

The cooler is 100% correctly seated now.
Checked after every restart now, since I managed to put it upside down before.....

scout_03 · Oct 23, 2016

so let check your temp and if they stay in safe zone your good to go .

danielbudimann · Oct 23, 2016

scout_03 :

No chance in temp 70/60 idle.
100C with battlefield 1.

scout_03 · Oct 23, 2016

then cooler not working did you spill paste on the cpu base or you bent a pin putting it back .

danielbudimann · Oct 23, 2016

I read the guide on your page (which I found through google ^.<)
http://www.tomshardware.co.uk/forum/id-1800828/intel-temperature-guide.html?_ga=1.50692074.2338566.1477162863
I am going to apply new thermal paste tmrw (apprently loses effect after 2 years.)
Also do the fans get old in same timespawn apparently. (I am a notorious gamer)
This would also somewhat explain that it went well for 2 years.
If the paste is not enough and I didn't wreck my cpu I am considering to add a non-stock cooler.

But all together thanks indeed.
I should be fine I hope

geofelt · Oct 23, 2016

A cooler needs at least some airflow to be able to do it's job.
Do your temps change much if you remove the case covers?
If so, look to case airflow solutions.

danielbudimann · Oct 24, 2016

geofelt :

Has not really a notable influence wheter I put them on or off.

Do you think I should go into a pc shop?
They charge me 60 bucks (Switzerland) for half an hour.
I have to bring my pc and he told me in 30 min tops he finds out what the problem is.
For the same money I can reaply thermal paste and buy a non-stock cooler.
However maybe that won't solve the problem.

What do you suggest? :3

geofelt · Oct 24, 2016

What case do you have?
You need adequate front intake air capability.
If your case has two 120mm front intake fans or better, you will have adequate intake.
Your GTX770 is a relatively hot card so it needs airflow also.

I doubt that the overclock is the issue.
At idle, your cpu is hardly working.

Are all fans working?
Dangle a tissue in front of the fan to verify which direction the air is flowing.

Since this is a new occurrence, check for malware that can really stress your cpu.
Run malwarebytes free edition to check.

Regardless, I would spend some $30 for a air cooler with a 120mm fan. Cryorig H7 is very good.
cm hyper 212 is popular, but larger and harder to mount.
If nothing else, the larger 120mm fan will keep your pc quieter.

danielbudimann · Oct 24, 2016

geofelt :

I got a 120mm and a 140mm(front) in the case.
It feels like they hardly move the tissue at all.
Even though they are running at:
2100 cpu
900
1200
This was in a moment. It hovers around this.

I couldn't find something with the build in.
With yours I found some shit.

I'll test it now with a non-stock cooler.

danielbudimann · Oct 24, 2016

Simple and easy.

I replaced my trash stock cooler with the one my brother has.
Now all the temperatures went on 50% or less compared to the numbers I had before.
For instance:
100C -> 50C in use
60/70C -> 35-40C idle
C stands for Celsius

My thermal paste is worn through, it apparently should be replaced after about 2 years.
So the stuff is just old and worn out and needs to be replaced, as I said I am a notorious gamer.
This guide helps me a lot, aside from the forum here:
http://www.tomshardware.co.uk/forum/id-1800828/intel-temperature-guide.html?_ga=1.50692074.2338566.1477162863

Thanks a ton for the fast help!

I may have mercy when I encounter you on the battlefield

Cheers.

scout_03 · Oct 25, 2016

witch game you play.

Why does my CPU overheat?

Commendable

Glorious

Titan

Splendid

Titan

Commendable

Glorious

Titan

Commendable

Glorious

Commendable

Titan

Commendable

Titan

Commendable

Titan

Commendable

Titan

Commendable

Titan

Commendable

Titan

Commendable

Commendable

Titan

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