Installing The Memory; Dual Channel Memory Configuration - Gigabyte GA-EG41MFT-US2H User Manual

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Installing the Memory

Read the following guidelines before you begin to install the memory:
• Make sure that the motherboard supports the memory. It is recommended that memory of the
same capacity, brand, speed, and chips be used.
(Go to GIGABYTE's website for the latest supported memory speeds and memory modules.)
• Always turn off the computer and unplug the power cord from the power outlet before installing
the memory to prevent hardware damage.
• Memory modules have a foolproof design. A memory module can be installed in only one direc-
tion. If you are unable to insert the memory, switch the direction.

1-4-1 Dual Channel Memory Configuration

This motherboard provides four DDR3 memory sockets and supports Dual Channel Technology. After the
memory is installed, the BIOS will automatically detect the specifications and capacity of the memory. En-
abling Dual Channel memory mode will double the original memory bandwidth.
The four DDR3 memory sockets are divided into two channels and each channel has two memory sockets as
following:
Channel 0: DDR3_1, DDR3_2
Channel 1: DDR3_3, DDR3_4
Due to chipset limitation, read the following guidelines before installing the memory in Dual Channel mode.
1. Dual Channel mode cannot be enabled if only one DDR3 memory module is installed.
2. When enabling Dual Channel mode with two or four memory modules, it is recommended that
memory of the same capacity, brand, speed, and chips be used and installed in the same colored
DDR3 sockets for optimum performance.
3. Due to a chipset limitation, to avoid the system being unable to start or the memory being incor-
rectly detected, if only one memory module is to be installed, we suggest that you install it on the
DDR3_1 or DDR3_3 socket; to install two memory modules, we suggest that you install them on
the DDR3_1 and DDR3_3 sockets. when all four memory slots are populated with DDR3 1066 MHz
modules, the memory speed will drop down to 800 MHz. (Go to GIGABYTE's website for the latest
memory support list.)
When memory modules of different capacity and chips are installed, a message which says mem-
ory is operating in Flex Memory Mode will appear during the POST. Intel
offers greater flexibility to upgrade by allowing different memory sizes to be populated and remain in
Dual Channel mode/performance.
Hardware Installation
Dual Channel Memory Configurations Table
Two Modules
Four Modules
(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)
- 16 -
DDR3_1 DDR3_2 DDR3_3
DS/SS - - DS/SS
- - DS/SS - -
SS SS SS
Flex Memory Technology
®
DDR3_4
- -
DS/SS
SS