ASRock Fatal1ty X370 Professional Gaming User Manual - Page 31

Installing Memory Modules (DIMM), DDR4 UDIMM Maximum Frequency Support

Page 31 highlights

Fatal1ty X370 Professional Gaming Series 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. 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. DDR4 UDIMM Maximum Frequency Support Ryzen CPUs: UDIMM Memory Slot A1 A2 B1 B2 - SR - - - DR - - - SR - SR - DR - DR SR SR SR SR SR/DR DR SR/DR DR Frequency (Mhz) 2667 2667 2667 2400-2667 2133-2400 1866-2133 SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label English 23

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English
23
Fatal1ty X370 Professional Gaming Series
2.3
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
Ryzen CPUs:
SR: Single rank DIMM, 1Rx4 or 1Rx8 on DIMM module label
DR: Dual rank DIMM, 2Rx4 or 2Rx8 on DIMM module label
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.
UDIMM Memory Slot
Frequency
(Mhz)
A1
A2
B1
B2
-
SR
-
-
2667
-
DR
-
-
2667
-
SR
-
SR
2667
-
DR
-
DR
2400-2667
SR
SR
SR
SR
2133-2400
SR/DR
DR
SR/DR
DR
1866-2133