ASRock B550M Pro4 will not POST with Ryzen 5 3600. CPU and memory lights lit on POST status checker. Memory being use is G. Skill F4-3600C18D-16GVK. It is not listed on the ASRock website, but the G. Skill website claims the memory is compatible and I have seen other successful builds with this combo. I have tested my PSU with a multimeter and the voltages appear to be ok.
I purchased this motherboard to replace a Gigabyte B550M DS3H that also would not post. I returned that board believing it was defective. Now I wonder if maybe I have a defective CPU.