Question Why is my CPU hitting 100c on a stress test using Cinebench?

[erin.draper]

I have just built my new PC. I have only built one other PC before. I didn't have this issue before, but these are new parts. Any idea why this would be happening? 100c on some of the cores. Minimum 95c on the rest. Fan seems to be spinning. Thermal paste on CPU before adding Fan.

Parts:
Windows 11

Motherboard
Gigabyte Z790 S DDR4 Motherboard - F3 Bios

CPU
Intel i5 14600k

Graphics
RTX 4070

CPU Fan
Deepcool AK620 ZERO DARK Tower CPU Cooler

Ram
2x16gb DDR4
2x8gb DDR4

Monitor
Philips 4k Monitor

Case
Game Max Titan PC Gaming Case with 2 x RGB Front Fan, 1 x Rear Fan

SSD
1tb M.2 Chip

 

[Ralston18]

The starting point is to understand the stress test itself: what is being tested and to what extent?

Real stress tests generally try to break things.

For the most part I would not expect any given consumer level stress test to take things that far.....

So if the stress test in question is simply causing components to heat up and if those components are not being properly cooled (i.e., 100 C being too high, out of spec, etc.) then the "cooling system"needs to looked at.

Knowing what fans, airflows, airflow directions, and so forth are important. All fans.

I suggest posting a simple sketch or edited photograph to provide the proverbial "big picture look".

Check the case documentation for supported fans and fan configurations.

The CPU may be getting hot because the surrounding airflows are not sufficient to carry away all of the heat generated by the stress test.

Consider that a stress test going for broke could result in a heat damaged or destroyed CPU.

Again not something that the stress test is likely to do per se. However in the real world other similar circumstances and conditions may not be so forgiving....

Is all data backed up?

 

[--SID--]

Why 4 sticks of RAM from different packages. Not matched RAM stresses the MC and gives extra heat. Remove the 2x8GB, put the 2x16GB in A2 and B2 and test again.

 

[Unolocogringo]

Is this your case?
https://www.neweggbusiness.com/product/product.aspx?item=9b-11-445-009

If so it is a terrible airflow case. The front fans have almost no intake and the hard drive cages disturbs and diffuses airflow.


Most motherboard for 13/14 generation motherboards came with overclocked voltages and amperage available as default settings.
Newer bios files have intel defaults set properly .
Might want to update to latest bios and reset bios/clear CMOS after the update.