Memory Bank Configuration - MSI -5149 User Manual

2.2-1 Memory Bank Configuration

The system board supports a maximum of 128M of memory. It provides four
72-pin SIMMs (Single In-Line Memory Module) and two 168-pin DIMM
sockets. This board supports 4 banks wherein each bank supports memory
ranging from 4MB to 32MB. A Bank always has a pair of SIMM or a single
DIMM. Each bank supports 4M, 8M, 16M and 32M. The 2MB is the
minimum and the 16MB is the maximum for one 72-pin single sided memory
module.
USB1
Warning! SIMM Socket 1-4 power level is 5 volts. DIMM Socket 1 & 2
power level is 3.3 V/5V. We suggest not to install both the SIMM
& DIMM at the same time. But if you want to install both SIMM
& DIMM slot, you must use a 3.3 volt DIMM with 5 volt I/O
signal tolerance or use a full 5 volt DIMM module. Otherwise it
may cause damage to the DIMM.
+5V +3V
2-10
SIMM4(Bank 2/3) RAS2+ RAS3
SIMM3(Bank 2/3) RAS2+ RAS3
SIMM2(Bank 0/1) RAS0+ RAS1
SIMM1(Bank 0/1) RAS0+ RAS1
DIMM2(Bank 0/1) RAS1+ RAS0
DIMM1(Bank 2/3) RAS3+ RAS2