
DRAM SIMMs Configuration
The on-board DRAM memory sub-system has four module
mounting sockets which are divided into “banks” of one socket
each. They support 256Kx36, 512Kx36, 1Mx36, 2Mx36,
4Mx36, and 8Mx36 DRAM SIMMs. DRAM speed must be
70ns or faster. You can configure the memory of the 486PH in a
variety of ways as follows.
SIMM1
SIMM2
SIMM3
SIMM4
1Mx36
1Mx36
4Mx36
None
None
1Mx36
1Mx36
4Mx36
1Mx36
4Mx36
None
1Mx36
1Mx36
4Mx36
1Mx36
4Mx36
1Mx36
4Mx36
2Mx36
None
None
None
2Mx36
2Mx36
8Mx36
None
None
2Mx36
2Mx36
8Mx36
None
1Mx36
4Mx36
2Mx36
1Mx36
4Mx36
None
None
2Mx36
1Mx36
4Mx36
None
1Mx36
4Mx36
4Mx36
4Mx36
None
None
4Mx36
4Mx36
4Mx36
None
4Mx36
4Mx36
4Mx36
4Mx36
8Mx36
None
None
None
8Mx36
8Mx36
None
None
8Mx36
1Mx36
4Mx36
None
None
8Mx36
1Mx36
4Mx36
None
1Mx36
4Mx36
Содержание 486PH
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