‎DIMM Slots 4 and 2 not working

‎DIMM Slots 4 and 2 not working ram slot 3 and 4 not working It's not impossible that you had some issue with the contact pads on the CPU , which could mess up one of the memory ram slot 1 and 3 RAM SLOT NOT WORKING FULL SOLUTION

ram slot 1 and 3 - 4 x DDR4 DIMM Slots - AMD Ryzen series CPUs support DDR4 3200 2933 2667 2400 2133 ECC & non-ECC, un-buffered memory*

ramses book golden nights slot Also try only one stick of RAM at a time in the first slot that the motherboard manual says to use Clean all slots with IPA Cleaner or some sort of air blower or if not available then using a soft brush but very gently Then test 2 RAMs in