Epson ActionPC 8000, User Manual

Page: 89 / 187

You must install chips in one of the configurations in the table
below (each bank contains four cache memory sockets).
Cache memory configurations
BANK 0
U33, 34,35, 36
32K x 8,
28-pin (3.3 V)
64K x 8,
28-pin (3.3 V)
128Kx8,
32-pin (3.3 V)
BANK 1
U40,41,42,43
32K x 8,
28-pin (3.3 V)
64K x 8,
28-pin (3.3 V)
128Kx8,
32-pin (3.3 V)
Tag SRAM
U20
32K x 8,
28-pin (5 V)
32K x 8,
28-pin (5 V)
32K x 8,
28-pin (5 V)
ALT bit
U44
32K x 8,
28-pin (5 V)
32K x 8,
28-pin (5 V)
32K x 8,
28-pin (5 V)
Total
external
cache
256KB
512KB
1MB
Follow these steps to install external cache on the slimline
computer:
First remove the internal drive mounting bracket in your
computer; see “Removing the Drive Mounting Bracket” in
Chapter 5 for instructions.
Locate the external cache memory sockets as shown in the
illustration under “Locating the System Board
Components.”
Remove any option cards that are blocking access to the
sockets; see “Removing an Option Card” for instructions.
Caution
To avoid generating static electricity and damaging the
cache chips, ground yourself by touching the metal
surface on the inside of the computer’s back panel. Then
remain as stationary as possible while you install them.
Installing and Removing Options
4-25