ASROCK B550D4-4L - Installing Memory Modules (DIMM)

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2.5 Installing Memory Modules (DIMM)
is motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots,
and supports Dual Channel Memory Technology.
DDR4 UDIMM Maximum Frequency Support
1. For dual channel conguration, 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.
UDIMM Memory Slot Matisse Renoir Vermeer
A2 A1 B2 B1 Freq(Mhz) Freq (Mhz) Freq (Mhz)
- SR - - 3200 3200 3200
- DR - - 3200 3200 3200
- SR - SR 3200 3200 3200
- DR - DR 3200 3200 3200
SR SR SR SR 2666 2666 2666
DR DR DR DR 2400 2400 2400