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Ryzen Series CPUs (Raven Ridge):
UDIMM Memory Slot
A1
A2
-
SR
-
DR
-
SR
-
DR
SR
SR
SR/DR
DR
SR/DR
SR/DR
SR/DR
SR/DR
SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
Frequency
(Mhz)
B1
B2
-
-
2933
-
-
2667
-
SR
2667
-
DR
2667
SR
SR
2667
DR
2667
SR/DR
2133-2400
B450M Pro4-F
23