First I want to thank you again pastrychef for this thread. My system is now at least as stable as the real trash can I have at work.
But I am having overheating problems. I suspect I'll need to reseat my cooler (or perhaps have a professional do it for me). During a two-minute povray test, my cores hit peak temperatures of 87-93, and averaged above 85. I know the 9900k runs hot but that seems excessive. And I'm not even overclocking (nor will I, with these temperatures).
I have a NH-D15S, and three NF-S12A pushing air through a Corsair Carbide 275R case. I checked the BIOS to make sure all the fans were set to manual fan curves that maxed them out at reasonable temperatures (and this was my only downtime in the past three weeks - thanks again for a stable system). I do find I get slightly cooler temperatures if I cover the front half of the top vent on the case (so front fan air has to go through the CPU cooler rather than instantly exiting the case), but it's not enough of a difference to make it as cool as it ought to be.
Is there a way to get more info out of iStat? It only shows me one fan speed. It doesn't show any GPU temperature. It doesn't let me see any of the Gigabyte board temperatures.
Any advice, besides reseating my cooler?