American Megatrends AMI 386SX, Предварительное руководство, Страница: 45 / 52

Your AMI 386SX motherboard memory system consists of four 32-bit Dynamic Random
Access Memory (DRAM) memory banks. All banks are designed to use Single in-
line memory module (SIMM) DRAM's. Please refer to figure 1-1 for reference to
memory bank location.
NOTE
If your motherboard is installed in the system and you are adding memory,
it is highly recommended to remove the motherboard before attempting to
install SIMM cards. The force required to insert the SIMM cards could
cause the board to flex and damage could occur at the standoff area's.
5.1 Installing SIMM modules
You may use either 256Kx9 or 1Mx9 SIMM card's. Each SIMM bank must contain two
SIMM card's and be filled as follows; Bank 0, or bank 0 and bank 1, or all
banks. No other combination is allowed. Table 5.1 shows memory configuration.
SIMM BANK0 BANK1 BANK2 BANK3 MEMORY
TYPE
SIZE
256Kx9XXXXX 512KB
XXXXX XXXXX 1MB
XXXXX XXXXX XXXXX XXXXX 2MB
1Mx9XXXXX 2MB
XXXXX XXXXX 4MB
XXXXX XXXXX XXXXX XXXXX 8MB
You should use only one type of memory module on the motherboard. Refer to
Table 5.2 for suggested manufacturers and part numbers.
Type SIMM Board Speed
Manufacturer Part Number
256Kx9 16 MHz Hitachi HB561409BL-12
Hitachi HB561409B-10
Hitachi HB561409BL-10
1Mx9 16MHz Fujitsu MB85235-12
Mitsubishi MH1M09A0JA-12
NEC MC-421000A9-12
Toshiba THM91000S-12
Fujitsu MB85235-10
Mitsubishi MH1M09A0JA-10
NEC MC-421000A9-10
Toshiba THM91000S-10
Table 5.1 SIMM Card Memory Configuration
Table 5.2 SIMM Card Part Numbers