ASROCK 939S56-M Fiche technique télécharger pdf (Page 12)

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2.3 Installation of Memory Modules (DIMM)2.3 Installation of Memory Modules (DIMM)

2.3 Installation of Memory Modules (DIMM)

939S56-M motherboard provides four 184-pin DDR (Double Data Rate) 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) DDR

DIMM pair in the slots of the same color. In other words, you have to install identical

DDR DIMM pair in Dual Channel A (DDR1 and DDR2; Blue slots; see p.8 No. 5) or

identical DDR DIMM pair in Dual Channel B (DDR3 and DDR4; Black slots; see p.8

No. 6), so that Dual Channel Memory Technology can be activated. This motherboard

also allows you to install four DDR DIMMs for dual channel configuration, and please

install identical DDR DIMMs in all four slots. You may refer to the Dual Channel

Memory Configuration Table below.

Dual Channel Memory Configurations

DDR1 DDR2 DDR3 DDR4

(Blue Slot) (Blue Slot) (Black Slot) (Black Slot)

(1) Populated Populated - -

(2) - - Populated Populated

(3)* Populated Populated Populated Populated

* For the configuration (3), please install identical DDR DIMMs in all four slots.

* It is recommended to install DDR1 and DDR2 (blue slots) first. Then to install

in DDR3 and DDR4 (black slots). (That is, to populate DDR DIMM from the

near side of CPU towards to the far side of CPU.)

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

compatibility and reliability, it is recommended to install them in the

slots of different color. In other words, install them either in DDR1

and DDR3.

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

in the DDR 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 DDR1

and DDR3, it is unable to activate the Dual Channel Memory Tech-

nology .

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ASROCK 939S56-M Fiche technique Page 12