ASRock A55 Pro3 [17/69] Installation of memory modules dimm

2.3 Installation of Memory Modules (DIMM)

This motherboard provides four 240-pin DDR3 (Double Data Rate 3) DIMM

slots, and supports Dual Channel Memory Technology. For dual channel con-

guration, you always need to install identical (the same brand, speed, size

and chip-type) DDR3 DIMM pair in the slots of the same color. In other words,

you have to install identical DDR3 DIMM pair in Dual Channel A (DDR3_

A1 and DDR3_B1; Blue slots; see p.12 No.7) or identical DDR3 DIMM pair in

Dual Channel B (DDR3_A2 and DDR3_B2; White slots; see p.12 No.8), so

that Dual Channel Memory Technology can be activated. This motherboard

also allows you to install four DDR3 DIMMs for dual channel conguration, and

please install identical DDR3 DIMMs in all four slots. You may refer to the Dual

Channel Memory Conguration Table below.

Dual Channel Memory Congurations

DDR3_A1 DDR3_A2 DDR3_B1 DDR3_B2

(Blue Slot) (White Slot) (Blue Slot) (White Slot)

(1) Populated - Populated -

(2) - Populated - Populated

(3)* Populated Populated Populated Populated

For the conguration (3), please install identical DDR3 DIMMs in all four

slots.

1. If you want to install two memory modules, for optimal compatibility

and reliability, it is recommended to install them in the slots of the

same color. In other words, install them either in the set of blue

slots (DDR3_A1 and DDR3_B1), or in the set of white slots (DDR3_

A2 and DDR3_B2).

2. If only one memory module or three memory modules are installed

in the DDR3 DIMM slots on this motherboard, it is unable to activate

the Dual Channel Memory Technology.

3. If a pair of memory modules is NOT installed in the same Dual

Channel, for example, installing a pair of memory modules in

DDR3_A1 and DDR3_A2, it is unable to activate the Dual Channel

Memory Technology .

4. It is not allowed to install a DDR or DDR2 memory module into

DDR3 slot; otherwise, this motherboard and DIMM may be dam-

aged.

5. If you adopt DDR3 2400/1866/1600 memory modules on this

motherboard, it is recommended to install them on DDR3_A2 and

DDR3_B2 slots.