Hey,
Not so long ago I've build my pc. And had some problems with expo profile of RAMs (Kingston 2 x 32gb cl30 6000mhz), but after fine tuning it in BIOS (ASRock B850 Riptide WiFi) (according to and assistance with ASRock tech support:
Set Processor ODT Impedance to 60ohm from OC Tweaker/ DRAM...