ASROCK Fatal1ty B450 Gaming-ITX/ac Handbuch Seite 31

Series
2.3 Installing Memory Modules (DIMM)
This motherboard provides two 288-pin DDR4 (Double Data Rate 4) DIMM slots,
and supports Dual Channel Memory Technology.
DDR4 UDIMM Maximum Frequency Support
Ryzen Series CPUs (Pinnacle Ridge):
Ryzen Series CPUs (Summit Ridge):
Ryzen Series CPUs (Raven Ridge):
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 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
A1 B1
- SR
SR -
- DR
DR -
SR SR
DR DR
UDIMM Memory Slot
A1 B1
- SR
SR -
DR
DR -
SR SR
DR DR
UDIMM Memory Slot
Fatal1ty B450 Gaming-ITX/ac
Frequency
(Mhz)
2933
2933
2400
2400
2933
2400
Frequency
(Mhz)
2667
2667
2667
2667
2667
2667
Frequency
25