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THE CACHE MEMORY
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This system board can support an optional 128KB, 256KB, 512KB or 1MB external write back
cache. CPU internal write-back cache is also supported.
CACHE MEMORY
CONFIGURATIONS
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TYPE TOTAL
CACHE BANK
0 BANK
1 TAG
RAM PIECES
(U19,22,24,27)
(U18,21,23,26) (U17)
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A
128K
32K x
8
32K X 8 5
B
256K
32K x
8
32K x 8 32K X
8 9
C
256K
64K x
8
32K X 8 5
D
512K
64K x
8
64K x 8 32K X
8 9
E
512K
128K x
8
32K X 8 5
F
1024K
128K x 8
128K X 8 64K X
8 9
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CACHE MEMORY
JUMPER CONFIGURATIONS
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TYPE
CACHE JUMPER
JP13
JP14 JP15A
JP15B JP15C
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A
128K
1 -
2
1 - 2 OPEN
OPEN OPEN
B
256K
2 -
3
2 - 3 OPEN
OPEN SHORT
C
256K 1
- 2,3 -
4
1 - 2 OPEN
OPEN SHORT
D
512K 2
- 3,4 -
5
2 - 3 OPEN
SHORT SHORT
E
512K 1 - 2, 3 - 4, 5 -
6 1 -
2 OPEN
SHORT SHORT
F
1024K 2 - 3, 4 - 5, 6 -
7 2 -
3 SHORT
SHORT SHORT
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THE MAIN MEMORY
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This system board can support up to 256MB main memory with 4 auto banking 72-pin SIMM
slots for Fast Page Mode DRAM.
SOME MAIN MEMORY
CONSIDERATIONS
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Maximum memory on-board can not exceed 256MB in any combination.
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