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5V Stand-by indicator LED (LED 5)
Step 3.
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.
Configure Memory
Step 4.
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
Single-Side
RAM
Type
Double-Side
Memory Module Size (MB)
Enable/Disable Power-On by Keyboard (JP1)
Step 5.
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
Short pin 1-2 to
enable the Power-
JP1 Setting
On by Keyboard
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.
DIMM 1
PC100/PC133
PC100
PC133
32/64/128/256/512 MB
Enable
function.
1 2 3
9
SY-7ISA Quick Start Guide
DIMM 2
DIMM 3
PC100/PC133
PC100/PC133
PC100
PC133
PC133
PC133
Disable
Short pin 2-3 and
the Power-On by
Keyboard function is
disabled.
P100
1 2 3
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