SY-5EHM/5EH5 V1.x Quick Start Guide
14
Installation

Step 6. Configure Memory

Your board comes with one SIMM Bank (2 modules) and two DIMM sockets, providing
support for up to 512MB of main memory using DIMM modules from 8MB to 256MB. For
66MHz host bus CPUs use 12ns or faster DIMM modules; for 83MHz host bus CPUs use
8ns modules.
Memory Configuration Table
SIMM Bank DIMM BanksMEMORY
CONFIGURATION Bank 1,2 DIMM 1 DIMM 2
RAM Type FPM/EDO/BEDO EDO/SDRAM EDO/SDRAM
Single RAM
Module Size (MB) 4/8/16/32/64 8/16/32/64/128/256 8/16/32/64/128/256
Note: 1. You must install two SIMM modules to complete the SIMM Bank
2. Do not use FPM or EDO type of SIMM/DIMM if you already use SDRAM.
3. Do not install SIMM Bank and DIMM 1 at the same time.

Step 7. Clear CMOS

Clear the CMOS memory by momentarily shorting pin 2-3 on jumper JP5, and then by
shorting pin 1-2 to retain new settings. This jumper can be easily identified by its white
colored cap.
CMOS Clearing Clear CMOS Data Retain CMOS Data
JP5 Setting short pin 2-3 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.
3
2
1
3
2
1