ASROCK Z170 Extreme4+ Handbuch Seite 21

2.3 Installing Memory Modules (DIMM)
his motherboard provides four 288-pin DDR4 (Double Data Rate 4) DIMM slots,
and supports Dual Channel Memory Technology.
1. For dual channel coniguration, 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.
Dual Channel Memory Coniguration
Priority DDR4_A1
1
2 Populated
3 Populated
he DIMM only its in one correct orientation. It will cause permanent damage to
the motherboard and the DIMM if you force the DIMM into the slot at incorrect
orientation.
DDR4_A2 DDR4_B1
Populated
Populated
Populated Populated
Z170 Extreme4+ / Z170 Extreme4
DDR4_B2
Populated
Populated
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