X399D8A-2T
22
23
English
2.5 Installation of Memory Modules (DIMM)
This motherboard provides eight 288-pin DDR4 (Double Data Rate 4) DIMM slots in two
groups, and supports Quad Channel Memory Technology.
A single memory module should be installed in the Blue socket.
CPU1
A1
A2
B1
B2
C1
C2
D1
D2
1 DIMM
#
2 DIMMS
#
#
4 DIMMS
#
#
#
#
8 DIMMS
#
#
#
#
#
#
#
#
Dual Channel Memory Configuration
Priority
DDR4_A1
DDR4_B1
DDR4_C1
DDR4_D1
1
Populated
Populated
2
Populated
Populated
1. 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.
2. For dual channel configuration, you always need to install identical (the same brand,
speed, size and chip-type) DDR4 DIMM pairs.
3. It is unable to activate Dual Channel Memory Technology with only one or three memory
module installed.
4. Some DDR4 1GB double-sided DIMMs with 16 chips may not work on this motherboard.
It is not recommended to install them on this motherboard.
