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23
B550 PG Riptide
*The diagrams shown here are for reference only. The headers might be in a different position
on your motherboard.
2.3 Installing Memory Modules (DIMM)
This motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots,
and supports Dual Channel Memory Technology.
AMD non-XMP Memory Frequency Support
Ryzen Series CPUs (Vermeer):
Ryzen Series CPUs (Matisse):
1. For dual channel configuration, you always need to install identical (the same
brand, speed, size and chip-type) DDR4 DIMM pairs.
2. It is unable to activate Dual Channel Memory Technology with only one or three
memory module installed.
3. It is not allowed to install a DDR, DDR2 or DDR3 memory module into a DDR4
slot; otherwise, this motherboard and DIMM may be damaged.
4. We suggest that you install the memory modules on DDR4_A2 and DDR4_B2 first
for better DRAM compatibility on 2 DIMMs configuration.
UDIMM Memory Slot
Frequency
(Mhz)
A1
A2
B1
B2
-
SR
-
-
3200
-
DR
-
-
3200
-
SR
-
SR
3200
-
DR
-
DR
3200
SR
SR
SR
SR
2933
SR/DR
DR
SR/DR
DR
2667
SR/DR
SR/DR
SR/DR
SR/DR
2667
UDIMM Memory Slot
Frequency
(Mhz)
A1
A2
B1
B2
-
SR
-
-
3200
-
DR
-
-
3200
-
SR
-
SR
3200
-
DR
-
DR
3200
SR
SR
SR
SR
2933
SR/DR
DR
SR/DR
DR
2667
SR/DR
SR/DR
SR/DR
SR/DR
2667