Installation Of Memory Modules (Dimm) - ASROCK X79 Extreme7 User Manual

2.5 Installation of Memory Modules (DIMM)

This motherboard provides six 240-pin DDR3 (Double Data Rate 3) DIMM
slots, and supports Quad Channel Memory Technology. For quad channel con-
guration, you always need to install identical (the same brand, speed, size
and chip-type) DDR3 DIMM in the slots: You have to install identical DDR3
DIMM in DDR3_A1 (Black slot; see p.12 No.1), DDR3_B1 (Black slot; see p.12
No.3), DDR3_D1 (Black slot; see p.12 No.7) and DDR3_C1 (Black slot; see p.12
No.9), so that Quad Channel Memory Technology can be activated.
1. Due to Intel
two DIMM are installed into DDR3_B2 and DDR3_D2 slots. Please
install the memory modules into DDR3_B1 and DDR3_D1 slots
rst, then DDR3_B2 and DDR3_D2 slots can work properly.
2. If only two memory modules are installed in the DDR3 DIMM slots,
then Dual Channel Memory Technology is activated. If three memo-
ry modules are installed, then Triple Channel Memory Technology is
activated. If four memory modules are installed in the DDR3 DIMM
slots, then Quad Channel Memory Technology is activated.
3. It is not allowed to install a DDR or DDR2 memory module into
DDR3 slot; otherwise, this motherboard and DIMM may be dam-
aged.
®
CPU spec de nition, the system will not boot if only
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