when i ran automatic fancurves in BIOS for example, i always had the issue that my pc in idle was quiet, and under specific even just singlethread workloads, my fans ramped really high and then down and during a game sequence where it was intense they ramped up and down and up and down and up and down, i had to go to bios and set a manual fancurve to have peace n quiet. i ran cinebench and tried different static fancurve profiles. like all my casefans run 50%, than 60% etc and the same for my cpu cooler fans, eventually i settled at a sweetspot, where during cinebench runs my cpu didnt thermal throttle and was cool enough at 86°C tdie hotspot with ccd temps at 75°C (check with hwinfo64), but my fans maximum rpm never got noisy enough again to annoy me during use of my pc. its a balancing act. a friend got a 12700k and he had to do the same.
cap the max fanspeed in BIOS, run cinebench, check temps, set the fancurve to a maximum that doesnt audibly annoy you, run cinebench again and see if temps are okay. its not really about temperature anymore, the silicon can handle it as long as tjmax isn´t causing thermal throttling. like my casefans run 60% permantely static, i dont hear em, but they provide enough air to my cpu cooler running at 80% static with bequiet fans, which i also cant hear, so my cpu is kept at below 90°C under heavy multithreaded workloads. it also works for tempspikes under singlethreaded workloads. it is really important to find the balance between airflow, fancurves/rpm and temperature.
in a sense, your temps are fine, you just gotta find fancurve balance so the tempspikes dont suddenly ramp your fans up and cause audible annoyances. once your pc sounds smooth, and your temps are kept below tjmax, its all fine. you might wanna check in on it every 2 to 3 years in case thermal paste dries out and temps rise, but using honeywell ptm7950 or thermalgrizzly kryosheets, really does the trick keeping temps steady for years to come with no worries. otherwise thick pastes like ceramicbased pasts or thich pastes like arctic silver 5 will also do the trick, just dont use runny watery crap like arctic mx series or noctua nt-h1/h2. and also dont use thermalgrizzly thermal pastes, they are overrated. i can really recommend grabbing honeywell ptm7950 from linustechtips or moddiy. might be expensive, but **bleep** its awesome. thermal phase changing pads with the same thermal performance as pastes changed everything. put it on my gpu as well, absolutely magnificent. if it were up to me, stuff like ptm7950 should be an industry standard not just among servers but also desktop.
