User`s manual

Installing Memory Modules

This mainboard accommodates 184-pin 2.5V unbuffered

Double Data Rate (DDR) or 168-pin 3.3V unbuffered Single

Data Rate (SDR) SDRAM memory modules. The memory

chips must be standard or registered SDRAM (Synchronous

Dynamic Random Access Memory).

The memory bus can run at 100 MHz or 133 MHz. If your

processor operates over a 100 MHz system bus, you can in-

stall PC100 or PC133 memory modules that operate over a

100 MHz or 133 MHz memory bus. If your processor operates

over a 133 MHz system bus, you can only install PC133

memory modules that operate over a 133 MHz memory bus.

Note:

SDRAM provides 800 MBps or 1 GBps data trans-

fer depending on whether the bus is 100 MHz or

133 MHz. Double Data Rate SDRAM (DDR

SDRAM) doubles the rate to 1.6 GBps and 2.1

GBps. DDR SDRAM uses additional power and

ground lines and requires 184-pin DIMM modules

rather than the 168-pin DIMMs used by SDRAM.

Installation Procedure