Question A 9900k with nh d15

acaciusx

Commendable
Mar 10, 2019
55
0
1,530
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Ive used 10600k and 10700k which comes in a 125 tdp,

This time i ran cpuz benchmark( which is far from being the heaviest)
With a nhd15 in a corsair 270r open sode doorin less than 25 seconds all cores( xmp on cores show 4999 all 8 cores) reaching 90s
And not long after most cores hit 100c


What the hell, shall i repaste readjust, switch cooler?
 
the nh-d15 is the most potent cooler. switching the cooler won't really make things better.

  • do the fans spin up?
  • have you removed the plastic cover from both, the cpu and the cooler?
  • have you tried repasting & reseating the cooler?
  • do you get a cpu fan error?
 

acaciusx

Commendable
Mar 10, 2019
55
0
1,530
0
the nh-d15 is the most potent cooler. switching the cooler won't really make things better.

  • do the fans spin up?
  • have you removed the plastic cover from both, the cpu and the cooler?
  • have you tried repasting & reseating the cooler?
  • do you get a cpu fan error?
The fans do spin up, and on idle was 20s low 30s
Its a 2yo computer, built by the store and have not being touched or open since, so that leads me to next thing,
I will try to repaste and reseat to test it as it should,

Just to clarify..i heard that cpu is hot, i heard that it even work best at around 80c
But it should not hit those temps with such cooler am i right?
 
The 270r case comes at stock with only a single 120mm rear exhaust.
For best cooling, install two 140mm front intakes.
You need to feed the NH-D15 which has two 140mm fans with sufficient airflow.

If you want to test with the side cover off, direct a house fan at the innards to simulate sufficient airflow for cooling.

Intel processors monitor their own temperature and will throttle or shut down if they detect a dangerous temperature.
That is around 100c.

Are you inadvertently overclocking?
Max turbo is 5.0, and that will only be on a couple of cores.
4.99 on all cores suggests to me that you have overclocked.
Perhaps a bios setting such as performance or optimized settings is in play.
 

rubix_1011

Contributing Writer
Moderator
You have something going wrong, I've used the NH-D15 a lot on the Tom's Hardware Intel test system with an i9-10850k at 4.6ghz across all 10 cores and it does remarkably well.

Completely agree with geofelt that this is likely an issue with cool airflow, but also could be a mounting issue unless that has 100% been eliminated.
Testing with the side of the case open with a house fan blowing air directly into the side of the case at highest setting will help determine if it is a cooler issue or an airflow issue (by providing an overabundance of airflow).
 

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