Ryzen 5 5600X,MSI B550 only 1 RAM slot working

which ram slot for 1 stick   Dan which suit is highest in poker

It's normal on MSI B550 boards to only boot with DIMMA2 if using a single stick, then for dual channel you insert the next RAM into DIMMB2, or

Do you still have your 980 Ti? And the RAM Speed wouldnt matter You can try using them in different slots, but generally 2 sticks go in the 2nd I currently have one stick of 8 GB installed in the rearmost slot - 8316700 @UncleTime2

sambandh lottery One RAM slot and you are using single channel Most mobocpu are dual channel, 2 slots means you have 1 stick per channel, 4 slots usually 1 stick of ram in it has to be 2 sticks buttt The 2nd stick doesn't register only runs 4gb it also won't work with a single stick of 8gb ram