Ryzen Series APUs (Renoir):
UDIMM Memory Slot
A1
A2
B1
-
SR
-
DR
-
SR
-
DR
SR
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)
B2
-
-
3200
-
-
3200
-
SR
3200
-
DR
3200
SR
2933
DR
2667
SR/DR
2667
B550M/ac
25