I have one of these with the largest Noctua heat sink (DH-15 IIRC) and as far as I can tell temps are fine (at least idle), but sometimes I notice the CPU fans will spin up momentarily for a second or two during what I presume are short CPU heavy operations which are probably multi-threaded using all 16 cores (ex. video editing or photo resizing).
Anyone else have one of these or a similar CPU observing something similar? Is this just a consequence of stuffing so many cores on there?
I haven’t remembered to check temps when it’s doing this momentary spike thing yet… of course, noticing this might be more due to the fact that I haven’t bothered to put the sides on the case yet. Eh whatever, I’ll get to it some day.
That‘s normal on any modern CPU, they‘ll boost and spike temperatures. Adjusting the fan curve should help. There’s usually also settings to control how soon you want the fan to spin up/down on variations (hysteresis/whatever it is called). Should not influence performance much on a D15 as the heatsink is large and can soak up some heat until the fans start spinning.
Some fan spin up delay helps as @quilt suggests. Also reining in power consumption in general helps a lot. As I’ve discussed elsewhere I’ve got my 5950X running at ~75W and it’s much less bursty with very little performance impact.
Yeah messing with fan curve settings is the next logical step to try. I was just curious if this is a known “thing” with this particular CPU - I certainly don’t notice it happening on my other (Intel) PCs.
Of course I could also stop being lazy and put the dang case together properly. lol
