CHAPTER 3: HARDWARE INSTALLATION
THE DRAM SIMMs
The on-board DRAM memory subsystem has four module mounting sockets which are divided into "banks" of two sockets
each. Sockets labeled SIM1 and SIM2 constitute bank 0. Sockets labeled SIM3 and SIM4 constitute bank 1. They
support 256Kx36, 512Kx36, 1Mx36, 2Mx36, 4Mx36, and 8Mx36 DRAM SIMMs. DRAM speed must be 60ns or 70ns.
You can configure the memory of the 586MI in a variety of ways as shown below.
Total
Memor
y
SIM1 &
SIM2
SIM3 &
SIM4
2MB
256Kx36
None
4MB
256Kx36
256Kx36
6MB
256Kx36
512Kx36
10MB
256Kx36
1Mx36
18MB
256Kx36
2Mx36
34MB
256Kx36
4Mx36
66MB
256Kx36
8Mx36
4MB
512Kx36
None
8MB
512Kx36
512Kx36
12MB
512Kx36
1Mx36
20MB
512Kx36
2Mx36
36MB
512Kx36
4Mx36
68MB
512Kx36
8Mx36
8MB
1Mx36
None
16MB
1Mx36
1Mx36
24MB
1Mx36
2Mx36
40MB
1Mx36
4Mx36
72MB
1Mx36
8Mx36
16MB
2Mx36
None
32MB
2Mx36
2Mx36
48MB
2Mx36
4Mx36
80MB
2Mx36
8Mx36
32MB
4Mx36
None
64MB
4Mx36
4Mx36
96MB
4Mx36
8Mx36
64MB
8Mx36
None
128MB
8Mx36
8Mx36
Installing DRAM SIMMs
When working with DRAM
SIMMs, it is extremely
important that you avoid
static electricity. Always
ground yourself by wearing
a wrist or ankle strap.
1. The SIMM module should face to the right with pin 72 next to the power supply connectors.
2. Insert the SIMM at a 45 degree angle, tilted towards ISA slots.
586MI System Board User's Manual Page 17
Содержание 586MI
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