2.5 Installation of Memory Modules (DIMM). ASROCK H55 EXTREME3, H55 EXTREME3 - V1.0

This motherboard provides 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 chiptype) DDR3 DIMM pair in the slots of the same color. In other words, you have to install identical DDR3 DIMM pair in Dual Channel (DDR3_A1 and DDR3_B1; white slots; see p.11 No.7), 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 Memory Configurations

DDR3_A2 DDR3_A1 DDR3_B2 DDR3_B1

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

(1) -

(2)* Populated

Populated -

Populated Populated

Populated

Populated

*

For the configuration (2), 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 white slots

(DDR3_A1 and DDR3_B1).

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

DDR3 slot;otherwise, this motherboard and DIMM may be damaged.

4. Please install the memory module into the white slot (DDR3_B1) for the first priority.

Please make sure to disconnect power supply before adding or removing DIMMs or the system components.

Step 1. Unlock a DIMM slot by pressing the retaining clips outward.

Step 2. Align a DIMM on the slot such that the notch on the DIMM matches the break on the slot.

notch break notch break

The DIMM only fits 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.

Step 3. Firmly insert the DIMM into the slot until the retaining clips at both ends fully snap back in place and the DIMM is properly seated.

There are 3 PCI slots and 4 PCI Express slots on this motherboard.

PCI slot:

PCI slot is used to install expansion cards that have the 32-bit PCI interface.

PCIE slots:

PCIE1 / PCIE3 / PCIE4 (PCIE x1 slot; White) is used for PCI Express cards with x1 lane width cards, such as Gigabit LAN card, SATA2 card, etc.

PCIE2 (PCIE x16 slot; Blue) is used for PCI Express x16 lane width graphics cards.

Step 2.

Step 3.

Step 4.

Step 5.

Step 6.

Step 1.

Before installing the expansion card, please make sure that the power supply is switched off or the power cord is unplugged. Please read the documentation of the expansion card and make necessary hardware settings for the card before you start the installation.

Remove the system unit cover (if your motherboard is already installed in a chassis).

Remove the bracket facing the slot that you intend to use. Keep the screws for later use.

Align the card connector with the slot and press firmly until the card is completely seated on the slot.

Fasten the card to the chassis with screws.

Replace the system cover.