In absolute terms the Ryzen 7 3700X CPU temperatures on my Crosshair VIII Hero seem fine. According to HWINFO, the CPU sensors usually report temperatures around:
CPU (Tctl/Tdie) = in the 40s C
CPU CCD1 (Tdie) = in the 30s
While the motherboard sensors usually show:
CPU Package = in the 40s
CPU = in the 30s
But, those CPU temperatures swing an quite a bit. From second to second, even at idle, they'll bounce 3 to 8 degrees in either direction.
If it were an issue with my thermal paste application, I'd think I'd just be seeing generally high temperatures and maybe some thermal throttling. But, in long gaming sessions, my high temperatures are in the mid 70s and running Prime95's "Small FFTs (tests L1/L2/L3 caches, maximum power/heat/CPU stress)," those temperatures peak at about 85 degrees but usually stay in the mid to upper 70s. HWINFO isn't showing any thermal throttling. Once I'm done with any load, the temperatures quickly drop back to "normal" numbers.
Is this a problem? Is anyone else seeing those kinds of quick temperature swings?
