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SY-7ISA
Quick Start Guide
9
Hardware
Installation
Step 3. 5V Stand-by indicator LED (LED 5)
This LED is lit whenever the 5V Standby voltage coming from the ATX powersupply is
available. If you have connected your ATX powersupply to the mains, LED 5 should be lit.
Step 4. Configure Memory
Your board comes with two DIMM sockets, providing support for up to 512MB of main
memory using unbuffered and Non-ECC DIMM modules from 32MB to 512MB, No
reqistered DIMM support.
Supports up to 3 Double sided DIMMs at 100MHz system
memory. Supports up to 2 double sided or 3 single sided DIMMs a 133MHz system
memory bus.
On this motherboard, DRAM speed can be set independent from the CPU
front side bus speed. Depending on the DRAM clock speed setting in the BIOS setup.
Memory Configuration Table
Number of Memory
Modules
DIMM 1 DIMM 2 DIMM 3
Single-Side
PC100/PC133 PC100/PC133 PC100/PC133
PC100 PC100 P100
PC133 PC133
RAM
Type
Double-Side
PC133 PC133
Memory Module Size (MB)
32/64/128/256/512 MB
Step 5. Enable/Disable Power-On by Keyboard (JP1)
You may choose to enable the Power-On through Keyboard function by shorting pin 1-2 on
jumper JP1; or short pin 2-3 to disable this function.
Power-On by
Keyboard
Enable Disable
JP1 Setting
Short pin 1-2 to
enable the Power-
On by Keyboard
function.
Short pin 2-3 and
the Power-On by
Keyboard function is
disabled.
Important: When using the Power-On by Keyboard function, please make sure the
ATX power supply is able to provide at least 720mA on the 5V Standby lead (5VSB)
in order to meet the standard ATX specification.
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