ASROCK X38TurboTwins-WiFi Mode D'emploi page 14

2.3 Installation of Memor y Modules (DIMM) 2.3 Installation of Memor 2.3 Installation of Memor
2.3 Installation of Memor 2.3 Installation of Memor
This motherboard provides two 240-pin DDR2 (Double Data Rate 2) DIMM slots and
four 240-pin DDR3 (Double Data Rate 3) DIMM slots, and supports Dual Channel
Memory Technology. For dual channel configuration, you always need to install
identical (the same brand, speed, size and chip-type) DDR2/DDR3 DIMM pair in
the slots of the same color. In other words, you have to install identical DDR2
DIMM pair in Dual Channel A (DDRII_1 and DDRII_2; Yellow slots; see p.2 No.7),
identical DDR3 DIMM pair in Dual Channel B (DDR3_A1 and DDR3_B1; Green
slots; see p.2 No.8), or identical DDR3 DIMM pair in Dual Channel C (DDR3_A2
and DDR3_B2; Pink slots; see p.2 No.9), so that Dual Channel Memory Technology
can be activated. This motherboard also allows you to install four DDR3 DIMMs for
dual channel configuration, and please install identical DDR3 DIMMs in all four
slots. You may refer to the Dual Channel Memory Configuration Table below.
Dual Channel DDR2 Memory Configurations
2 memory modules SS
2 memory modules DS
Dual Channel DDR3 Memory Configurations
2 memory modules SS
2 memory modules DS
2 memory modules X
2 memory modules X
4 memory modules SS
4 memory modules DS
1. If you want to install two memory modules, for optimal compatibil-
ity and reliability, it is recommended to install them in the slots of
the same color. In other words, install them in the set of yellow
slots (DDRII_1 and DDRII_2), in the set of green slots (DDR3_A1
and DDR3_B1), or in the set of pink slots (DDR3_A2 and
DDR3_B2).
2. If only one memory module or three memory modules are in-
stalled in DDR3 DIMM slots on this motherboard, it is unable to
activate the Dual Channel Memory Technology. If only one memory
module is installed in DDR2 DIMM slots on this motherboard, it is
unable to activate the Dual Channel Memory Technology.
1 4 1 4 1 4
1 4 1 4
ASRock X38TurboTwins-WiFi / X38TurboTwins Motherboard
y Modules (DIMM) y Modules (DIMM) y Modules (DIMM)
y Modules (DIMM)
(DS: Double Side, SS: Single Side)
DDRII_1
(Yellow Slot)
(DS: Double Side, SS: Single Side)
DDR3_A1 DDR3_A2
(Green Slot) (Pink Slot)
X
X
SS
DS
SS
DS
DDRII_2
(Yellow Slot)
SS
DS
DDR3_B1 DDR3_B2
(Green Slot) (Pink Slot)
SS X
DS X
X SS
X DS
SS SS
DS DS