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Upgrading Cache Memory,
512 KB Jumper Settings Make sure that Pins 2-3 of JPW1, JPW2, JPW3, and JPW4 are shorted to select 3.3V SRAMs.
Pins 2-3 of J9 should be shorted. Pins 1-2 of J10 should be shorted. Pins 2-3 of JC1 should be shorted.
Reinstall Cover Reinstall the computer cover and turn system power on.
The system BIOS should now report 512 KB of secondary cache memory now after the computer boots. If it
does not, repeat the cache memory installation procedure above.
Using only 256 KB If using 256 KB of secondary cache memory, 32 KB x 8 SRAM DIPs should be installed in M1 through
M8.
An 8 KB x 8 5V SRAM DIP should be installed in M9, Pins 1-2 of JC1 should be shorted, Pins 1-2 of J9
should be shorted, and Pins 2-3 of J10 should be shorted.
Chapter 6 Upgrading Cache Memory
Continued
73
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