3 ms·

Either you mean 65C above ambient or something's wrong with your machine, unless you're running liquid nitrogen there's no way that chip's only at 65C under max

by omni 4y ago

Either you mean 65C above ambient or something's wrong with your machine, unless you're running liquid nitrogen there's no way that chip's only at 65C under max heat torture. Here's Tom's Hardware getting 90C on the blend test (MUCH less heat than max heat) with a 240mm AIO. https://www.tomshardware.com/reviews/intel-core-i9-9900k-9th-gen-cpu,5847-12.html https://www.tomshardware.com/reviews/intel-core-i9-9900k-9th...

Sohcahtoa82 4y ago
Hmm...you might be right... I just tried the test again, and with the max heat test, I was in the 95-100 C range and it was throttling to 4.3 Ghz. Now I'm wondering exactly what I did. It was years ago when I did this, right after I got my CPU.
- omni 4y ago
  Best guess, maybe you unintentionally only ran it on 1 thread?
  - Sohcahtoa82 4y ago
    Doubtful. I did find an old message on Discord though where I talked about it: > Ran the CPU torture tests in Prime95 on my new i9 with this Cooler Master Hyper 212 air cooler. When doing the Small FFTs test which generates maximum heat, yeah, it does suffer some thermal throttling. It'll run for about 30 seconds at full speed, then it'll enter a pattern where it throttles down to 3.6 Ghz for about 1/2 second, then jumps back up to 4.5 Ghz for 2 seconds, then throttles again. For the other two tests, it happily just hums without throttling at about 60 C. But even when suffering from thermal throttling, it's still faster than my old i7-3770k. Thing is, right now, if I do the "Large FFTs" test, it's hitting 90C, whereas before it was only 60C. I've had this CPU now for 4 years, and I have 3 cats and my computer is only a few inches off the floor. I wonder if I just need to dust out the cooler.
    - omni 4y ago
      Fwiw 90C on Large FFTs is much more in line with what I'd expect. Curious if you can actually get it down in the 60s somehow

by omni 4y ago

Sohcahtoa82 4y ago

Hmm...you might be right... I just tried the test again, and with the max heat test, I was in the 95-100 C range and it was throttling to 4.3 Ghz. Now I'm wondering exactly what I did. It was years ago when I did this, right after I got my CPU.

omni 4y ago
Best guess, maybe you unintentionally only ran it on 1 thread?
- Sohcahtoa82 4y ago
  Doubtful. I did find an old message on Discord though where I talked about it: > Ran the CPU torture tests in Prime95 on my new i9 with this Cooler Master Hyper 212 air cooler. When doing the Small FFTs test which generates maximum heat, yeah, it does suffer some thermal throttling. It'll run for about 30 seconds at full speed, then it'll enter a pattern where it throttles down to 3.6 Ghz for about 1/2 second, then jumps back up to 4.5 Ghz for 2 seconds, then throttles again. For the other two tests, it happily just hums without throttling at about 60 C. But even when suffering from thermal throttling, it's still faster than my old i7-3770k. Thing is, right now, if I do the "Large FFTs" test, it's hitting 90C, whereas before it was only 60C. I've had this CPU now for 4 years, and I have 3 cats and my computer is only a few inches off the floor. I wonder if I just need to dust out the cooler.
  - omni 4y ago
    Fwiw 90C on Large FFTs is much more in line with what I'd expect. Curious if you can actually get it down in the 60s somehow