asrock b360 pro4

Hello, so i have this PC right now ((( https://www.pcgarage.ro/sisteme-pc-garage/pc-garage/gaming-amarok/ ))) and i want to get this processor [ https://www.pcgarage.ro/procesoare/intel/coffee-lake-core-i9-9900kf-360ghz-box/ ] i want to know if it will work properly with what is on that pc...

Hi, I am currently using a ASROCK B360M Pro4, and recently I am installing a new water cooling system (Corsair h100). then, I try to monitor my cpu temperature through the iCUe software from Corsair. From that software I see a CPU temp (which is normal), GPU temp (normal as well). and then I saw...

I just installed the ASRock B360 PRO4 LGA1151 motherboard and noticed it's only acknowledging 4 cores out of 6. I have the i5-9400f for my cpu. I've flashed the bios to the newest version available with no luck. I was wondering if anyone knows how to fix this or what the cause is in case I need...