New PC, CPU at 100 degrees celsius.

[octaaf]

Hi there,
I just bought all the components for my PC en build it myself. After completion I didn't run CPU tests. So 1 week later I tested my CPU temps at 100% load and the temps went between 92 and 100 degrees Celsius instant. And it didn't drop at all. I removed my CPU cooler and paste and did it again. A big dot on the centre of de cpu and spread it out. After an other test, same happend!
What do I need to do, so that I don't destroy my CPU?
I have a I7 4790K and a Cooler master hyper 212 EVO cooler.
Thnx in advance

 

[octaaf]

ok i will try that now.
uhm with the stock cooler its around 40-48 degrees and with the CM cooler its around 34-36
Edit:
I did what you said, but this doesn't let my pc restart when it exceeds (in this case 55 degrees) the max temps, only the fan turns faster...
Isn't there a way I can let my PC shut down at 60 degrees or something, to test if it is really 60 degrees.

 

[mjslakeridge]

I dug around in the manual quite a bit, and I thought this was the place to set the maximum cpu temp before the computer shuts down, but apparently not. I did find it odd that the CPU Upper Temperature setting was in the Fan Speed Control section. I have never seen a BIOS that did not have a thermal protection shutdown setting. I will look further into the manual. Maybe someone else with specific knowledge of that motherboard will chime in with some insight.

I would hate to see you ruin a brand new processor if the temps are truly getting up around 100c.

 

[mjslakeridge]

Read this thread: http://www.tomshardware.com/answers/id-2786645/4790k-thermals.html

Same processor as yours.

 

[octaaf]

indeed kinda same problem, only he has 78 degrees max at real temps and prime 95

 

[mjslakeridge]

Within that thread (I think it is the 20th post from the Moderator Compu tronix) he has a link in his signature to an article he has written about CPU temperatures. Sort of technical, but he suggests test procedures and links to the tools (Software) needed. I am kind of working my way through the article now.

 

[octaaf]

indeed a good thing to read the computronix article, he said that you shouldn't use P95 28,5 build because it pushes it to the 100 degrees immediately. And that's the exact version I was using.
Now I'm using the P95 26,6 version and now the temps are 84, 87, 85, 79. So thats better but not ideal. plus in idle mode they are still around 50 degrees.
I heard someone saying that I have to much RAM (4x8GB) that takes some heat from my CPU. is that true?

 

[MasterMace]

when somebody posts a thread saying their CPU is running at 100 degrees, the first thing I usually say is that their program might be reading Fahrenheit instead of Celsius, however you've stated it was under load and your motherboard screenshot states at idle it is at 42C. I'm not worried about your ability to install a heatsink nor screw things tight nor follow a manual. One thing I noticed was your thermal paste screenshot. I imagine this was shown just to dictate how much paste you used; however, since the best way to solve this is step by step:

Did you make sure to spread the thermal paste across the entire surface of the heatsink/top of CPU (whichever is smaller)? If you left it as the glob, your temps will naturally be high, as heat isn't transferring.

It should be thick enough that you can't see the surface of the heatsink/cpu, but not thicker - a thin layer. The method I use to make sure I've covered everything is putting 5 dots, positioned 4 corners and center, on the cpu, and spreading it thin from there, using the tip of the thermal paste tube.

Temps of 50C idle and 87C on 1 of the cores is higher than what you want.

What case are you using?

Your case has a huge impact on your ambient temperatures, as without proper airflow, your case will merely act like a pot on a stove. If the heat from the CPU does not leave the case, it eventually will overheat. Many people will add additional fan(s), particularly a side case fan, to increase airflow.


Some further suggestions -

-many people turn off Turbo (Boost, whatever it's called) in their BIOS, to prevent any stability issues with their setup.
-many people change their voltages to static values instead of auto to prevent stability issues.
-some people set their CPU voltage lower than the stock value (undervolt) to lower the heat generated and power consumed by their cpu. Because Intel and AMD give you more voltage than required to run the stock frequency, you may find it simple to lower the CPU vcore a step or 2 and thus the heat generated under load.

 

[William Henrickson]

It seems like a combination of too much paste, CM paste which isnt very good, and too much voltage. Try a pea, literally a small pea size of NT-H1, and use the clamping down to spread it out naturally.

 

[octaaf]

Hi there.
I don't think it's my case, since I have the Cooler Master storm Stryker. (the sexy white beast)
Yea i noticed that I used way to much paste. That was stupid, but now I have just a little pea, also that didn't change a bit. still 100 degrees immediately. But what did work was following the steps on this site: https://communities.intel.com/docs/DOC-23517
Now my system at idle is 36 degrees and full load 67 degrees, so that's relief for me now 😀
But 1 question, since I lowered these settings, does this mean that my CPU is less powerful now? that I'm not using max of the CPU capability?
Turbo Boost power max: 88,000W
Turbo boost short power max: 110,000W
Processor current limit: 105,000A
Core Voltage: 1,186
Thnx

 

[William Henrickson]

Stock motherboard settings tend to be too high in voltage because it makes a more stable system, lessening the chance you will blame the board and return it if you BSOD. Especially easy auto overclocking settings, usually way too high. If you want good temps keep that voltage setting, but you can turn up the power max's back up though, those are very short spikes that wont contribute much to heat overall.

 

[mjslakeridge]

Wow, that is good news that you solved the overheating problem. From what I can understand from the link you attached was that your BIOS was sort of overclocking your processor beyond Intel's recommended settings.

To test your processor, go to this site: http://www.passmark.com/baselines/index.php
and download the performance test (click where it says "Performance Test V8" near the upper right corner of the page). Install it and run the various tests. Then you can compare your results to others with the same processor. Keep in mind that many people who run the performance test have seriously overclocked in order to get the highest possible score, but at least you will have an idea where you stand.

Or just play some games or what ever you use the computer for and don't worry about scores, just as long as the computer works well for you.

 

[William Henrickson]

Using a Prime95 to max out temp gives me 78c or so with a small 4.2ghz OC, while when I game at like 80% cpu usage or even more, it barely reaches 65c.

So keep in mind that using Prime95 is a worst case scenario, and it you stay under 85c on that, I can see your daily temps staying under 70c, which is just fine.

 

[octaaf]

alright nice thnx for the hints.
I will put the power max back up. and I will check how my CPU perform now.
I use my PC for gaming so as long as the games run smooth I'm indeed happy
Thank you all guys for the fast and good help!