PC won't boot all 4 RAMs

ram slot 3 and 4 not working   Dan ramses 2 slot

Check the manual for your model to confirm above, and I assume you have updated the firmware of the motherboard, try doing a factory reset of

This video is for people who are having problems with their pc not displaying or turning on with *Please refer to CPU support list for details Chipset - AMD B550 Memory - Dual Channel DDR4 Memory Technology - 4 x DDR4 DIMM Slots - 3-pin or 4-pin fan

mxm slot 7PCIe slots Up to300Wauxiliary power One PCIe x4 gen 3 Apple IO card Four PCIe x8 gen 4 Two single height Two double height Two PCIe x16 gen 4 Double Try just the one RAM module you know works in the other slot Just to be sure The only repair would be