User`s manual

Installing Memory Modules

The mainboard has two 168-pin/184-pin DIMM sockets for

SDRAM/DDR (Double Data Rate) SDRAM system memory

modules. You must install at least one memory module in order to

work out the mainboard, either SDRAM or DDR SDRAM, but

you can not use them simultaneously.

SDRAM provides 800 MB/s or 1 GB/s data transfer rate, and DDR

SDRAM doubles the rate to 1.6 GB/s and 2.1 GB/s depending on

whether the bus is 100 MHz or 133 MHz.

DDR SDRAM is a type of SDRAM that supports data transfers on

both edges of each clock cycle (the rising and falling edges),

effectively doubling the memory chip’s data throughput. DDR

DIMMs can synchronously work with 100 MHz or 133 MHz

memory bus.

DDR1

DDR2

SDR1

SDR2

Installation Procedure

These modules can be installed with up to 1 GB system memory.

Refer to the following to install the memory modules.

1. Push down the latches on both sides of the DIMM

socket.

2. Align the memory module with the socket. There is

a notch on the DIMM socket that you can install the

DIMM module in the correct direction. Match the

cutout on the DIMM module with the notch on the

DIMM socket.