Recently completed a new build where everything works fine, case fans and CPU-fan runs quietly during operation.
But... when I shutdown the computer (either in Windows or by the case on/off button), Windows shuts down nicely but then all fans (case fans and CPU fan) rev up a couple of notches and stay on. And will stay on forever.
This is not as if it was going through a "cooling down phase" or anything.
When I hit the power button again, all fans rev down and system boots fine.
Have checked alla the power related features in Windows and what I can see in BIOS and system is not going into hibernation or anything as far as I can tell.
Any suggestions on what to try?
X299-UD4 MB,
F4 BIOS
i9-7980X CPU
64 GB RAM
Nvidia 1060 graphics card
A couple of USB units plugged in.
Power Supply is a Coole Master Pro Gold, 1000W from 2011
No overclocking, BIOS is pretty much at default (Auto) values for everything.
Soundcard disabled in BIOS
Intel RST enabled in BIOS (running 3 RAID0 volumes).
Temps are around 30-40 degrees during use. System is (now) runing with case sides removed so it's definitely not overheating.
I have tried clearing CMOS and replaced CMOS battery (which was below 3V from factory).
