ASROCK Z87M Pro4 Handbuch Seite 21

2.3 Installing Memory Modules (DIMM)
his motherboard provides four 240-pin DDR3 (Double Data Rate 3) DIMM slots,
and supports Dual Channel Memory Technology.
Dual Channel Memory Coniguration
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1. For dual channel coniguration, you always need to install identical (the same
brand, speed, size and chip-type) DDR3 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 or DDR2 memory module into a DDR3 slot;
otherwise, this motherboard and DIMM may be damaged.
DDR3_A1 DDR3_A2
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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.
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DDR3_B1 DDR3_B2
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Z87M Pro4
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