PC only boots with 2 sticks of ram in 2 exact slots

If you have only one stick, put it in slot 2, if you have two, then 2 and 4 If you have three sticks you'll

The pc runs fine with 1 stick, but when the other is added the display does not show When you're trying RAM in both slots at the same time,

which ram slot for 1 stick 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

which slot do you put fabric softener in I had this problem years ago after enabling xmp, but it worked with 2 ram slots for like a whole