SOYO SY-5EH5 User's Manual & Technical Reference page 27

Hardware Setup
Step 6. DRAM Module Installation
This Motherboard supports two strips of 72-pin 5V FPM/EDO
DRAM (SIMM) from 4 to 64 MB and two strips 168-pin 3.3V/5V
Unbuffered DIMM modules from 8 to 256 MB. The Motherboard
requires SIMM modules of at least 70ns access time.
This Motherboard supports both EDO and SDRAM types of
memory modules.
Note: Do not install EDO type of DIMM modules if you already
use SDRAM in any DIMM bank.
MEMORY CONFIGURATION
This Motherboard features 2 x DIMM Banks for 168-pin 3.3V
unbuffered DIMM modules; 2 x SIMM Banks for 72-pin SIMM
modules.
*
22
SY-5EHM/5EH5 V1.3
2 3 4 5 6
1
DIMM 2
SIMM1
2 3 4 5 6
1
SIMM2
DIMM1