SY-6IBM
Quick Start Guide
8
Hardware Installation
Step 3.
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 front side bus CPUs use
12ns or faster memory; for 100MHz front side bus CPUs use 8ns (100MHz, PC100
compliant) memory.
Memory Configuration Table
Number of Memory Modules
DIMM 1
DIMM 2
DIMM 3
1
1
st
2
1
st
2
nd
3
1
st
2
nd
3
rd
RAM Type
SDRAM
Memory Module Size (MB)
8/16/32/64/128/256 Mbytes
Note:
(1) 256 MB memory modules only available on PC registered DIMM.
(2) Always install memory modules in the order prescribed in this table.
(3) Do not install unbuffered and registered memory modules together.
Important:
It is of prime importance that you install DIMM modules as outlined in the table
above in order to preserve signal integrity on 100MHz front side bus systems.
Step 4.
Enable/Disable Power-On by PS/2 Keyboard (JP1)
You can choose to enable the Power-On by PS/2 Keyboard function by shorting pin 2-3 on
jumper JP1, otherwise, short pin 1-2 to disable this function.
Support Power-On
by Keyboard
Disable
Enable
JP1 Setting
Disable Power-On
by PS/2 Keyboard
function
(short pin 1-2)
Enable Power-On
by PS/2 Keyboard
function
(short pin 2-3)
Important:
When using the Power-On by PS/2 Keyboard function, please make sure
the ATX power supply can take at least 720mA load on the 5V Standby lead (5VSB) to
meet the standard ATX specifications.
2
1
3
2
1
3
