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SY-7IWM
Quick Start Guide
9
Hardware
Installation
Step 3. Configure Memory
Your board comes with three DIMM sockets, and provides support up to 512MB main
memory using DIMM modules from 8MB to 256MB.
Memory Configuration Table
Number of
Memory Modules
DIMM 1 DIMM 2 DIMM 3
1
Double-sided/
Single-sided
Double-sided/
Single-sided
2
Double-sided/
Single-sided
Single-sided Single-sided²
RAM Type SDRAM¹
Memory Module Size (MB) 8/16/32/64/256 Mbytes
Note: 1. PC100 Compliant DIMM module is required regardless of 66 or 100
MHz FSB speed.
2. If you want to use DIMM3, DIMM2 must be used as well to let the
system work properly. Just plugging a memory module into DIMM3
with DIMM2 left empty, will make the system unstable.
CMOS Clear (JP5)
In some cases the CMOS memory may contain wrong data, follow the steps below to clear
CMOS memory.
1.
Clear the CMOS memory by momentarily shorting pin 2-3 on jumper JP5. This jumper
can be easily identified by its white colored cap.
2.
Then put the jumper back to 1-2 to allow writing new of data into the CMOS memory.
CMOS Clearing
Clear CMOS Data Retain CMOS Data
JP5 Setting
Short pin 2-3 for
at least 5 seconds to
clear the CMOS
Short pin 1-2 to
retain new settings
Note: You must unplug the ATX power cable from the ATX power connector when
performing the CMOS Clear operation.
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