Gigabyte GA-P31-S3L User Manual download pdf (Page 16)

GA-P31-DS3/DS3L/S3L Motherboard - 16 -

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1-4 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 memory support list.)

• 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

direction. If you are unable to insert the memory, switch the direction.

DDRII1

DDRII2

DDRII3

DDRII4

1-4-1 Dual Channel Memory Configuration

This motherboard provides four DDR2 memory sockets and supports Dual Channel

Technology. After the memory is installed, the BIOS will automatically detect the

specifications and capacity of the memory. Enabling Dual Channel memory mode

will double the original memory bandwidth.

The four DDR2 memory sockets are divided into two channels and each channel has two memory

sockets as following:

Channel 0: DDRII1, DDRII2

Channel 1: DDRII3, DDRII4

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 DDR2 memory module is installed.

2. When enabling Dual Channel mode with two memory modules, it is recommended that

memory of the same capacity, brand, speed, and chips be used and installed according to the

configurations in the first table for optimum performance.

3. Because of chipset limitations, do not populate both DIMM sockets of the same channel

(e.g. DDRII1 and DDRII2) with double-sided memory modules to prevent system's failure to

start or incorrect detection of memory modules.

Dual Channel Memory Configurations Table

(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)

Two Modules

Three Modules

Four Modules

DDRII1 DDRII2 DDRII3 DDRII4

SS SS - - - -

- - - - SS SS

SS SS DS/SS - -

SS SS - - DS/SS

DS/SS - - SS SS

- - DS/SS SS SS

SS SS SS SS

Memory configurations below will result in memory fre-

quency being reduced from the original frequency. However,

when using a FSB 1333 MHz CPU with the memory configu-

rations below, system instability or unexpected results may

occur.

(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)

Two Modules

DDRII1 DDRII2 DDRII3 DDRII4

DS/SS - - DS/SS - -

DS/SS - - - - DS/SS

- - DS/SS DS/SS - -

- - DS/SS - - DS/SS

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 83 84

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Gigabyte GA-P31-S3L User Manual Page 16

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