Computer Hardware User Manual

SY-5EMA+

Quick Start Guide

Installation

JP8 is used to indicate the frequency of the CPU bus clock to the ETEQ chipset.

JP9 and JP10 are used to determine that the SDRAM is running at the frequency of the

CPU bus clock or the AGP clock.

CPU BUS

Clock

AGP BUS

Clock

PCI Clock JP10 JP8 JP9

SDRAM

Clock

66MHz 66MHz 33MHz 1-2 2-3 2-3 66MHz

75MHz 75MHz 37.5MHz 1-2 2-3 2-3 75MHz

2-3 1-2 1-2 55MHz

83MHz 55MHz 27.5MHz

1-2 1-2 2-3 83MHz

2-3 1-2 1-2 63.4MHz

95MHz 63.4MHz 31.7MHz

1-2 1-2 2-3 95MHz

2-3 1-2 1-2 66MHz

100MHz 66MHz 33MHz

1-2 1-2 2-3 100MHz

2-3 1-2 1-2 75MHz

112MHz 75MHz 37.5MHz

1-2 1-2 2-3 112MHz

2-3 1-2 1-2 82.6MHz

124MHz 82.6MHz 41.3MHz

1-2 1-2 2-3 124MHz

Note:

Use 8ns or faster SDRAM modules (for PC100) when SDRAM is set to run at

the frequency of 95/100MHz.

Step 4. Configure Memory

Your board comes with three DIMM sockets, providing support for up to 768MB of main

memory using DIMM modules from 8MB to 256MB. For 66MHz host bus CPUs use 12ns or

faster DIMM modules; for 83MHz host bus CPUs use 8ns modules.

Memory Configuration Table

DIMM BanksMEMORY

CONFIGURATION

DIMM 1 DIMM 2 DIMM 3

RAM Type

FPM/EDO/SDRAM FPM/EDO/SDRAM FPM/EDO/SDRAM

Single RAM

Module Size (MB)

8/16/32/64/128/256 8/16/32/64/128/256 8/16/32/64/128/256

Note: Do not use FPM or EDO type of SIMM/DIMM if you already use SDRAM.