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SY-7VCM
Quick Start Guide
9
Hardware
Installation
ATX Power Supply: ATX PW
Attach the ATX Power cable to this connector. (This motherboard requires an ATX power supply, an AT
power supply can NOT be used.)
When using the Power-On by PS/2 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 specifications.
Step 3. Configure Memory
Your board comes with two DIMM sockets, providing support for up to 1GB of main memory
using unbuffered and registered DIMM modules from 8MB to 512MB. 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, appropriate memory modules must be used.
For 66MHz DRAM speed, use PC66 memory; for 100MHz DRAM speed, use PC100
memory; for 133MHz DRAM speed, use PC133 memory.
Memory Configuration Table
Number of Memory Modules DIMM 1 DIMM 2
RAM Type
EDO/ SDRAM/ VCM SDRAM
Memory Module Size (MB)
8/16/32/64/128/256/512 MB
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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