ASROCK X570 Extreme4 Handbuch Seite 28

Ryzen Series CPUs (Picasso):
UDIMM/SO-DIMMs Memory Slot
# of DIMMs on
the Channel
1 of 1
1 of 2
2 of 2
2 of 2
x=1 or 2
SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
26
# of Ranks
1.20V
per DIMM
SR: 2933
xR
DR: 2677
SR: 2667
xR-0
DR: 2400
1R-1R 2133
2R-xR 1866