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SY-7IWB
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 PC100 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 not working.
Step 4. Set J6 &JP2 to configure CPU FSB Frequency
If the user wants to use the CPU at its standard FSB (Front Side Bus) Frequency, J6 has to
be closed. This will make sure the system will provide the CPU with the FSB Frequency it
was specified to run at. Make sure that JP2 is open when using this setting.
If the user wants to run the CPU at another (higher) FSB frequency however, J6 has to be
open. In this case use JP2 to set the FSB frequency.
Auto Mode Description
J6 JP2
Short J6
Must
be
open
Run the CPU at its specified FSB frequency.
For 66MHz FSB CPUs 66/75/83 MHz can be
selected in the BIOS.
For 100MHz FSB CPUs 100~133MHz can be
selected in the BIOS.
Note
: Don’t put any jumper on JP2 when J6 is set to short.
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2
3
1
2