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Video memory, External cache, Processor upgrades – Epson ACTIONTOWER 7000 User Manual

Page 6: Hard disk drive types, Enter

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EPSON ActionPC 7000, ActionTower 7000, Endeavor 486i

SIMM configurations (continued)

Bank0

Bank1

Bank2

Bank3

Total

(SIM1) Type

(SIM2) Type

(SIM3) Type

(SIM4) Type

memory

16MB Single

16MB Single 8MB

Double -

40MB

16MB Single

16MB Single

16MB Single -

48MB

16MB Single

16MB Single 8MB

Double 8MB

Double 48MB

16MB Single

16MB Single

16MB Single

16MB Single 64MB

16MB Single

16MB Single 32MB Double -

64MB

16MB Single

16MB Single 32MB Double 32MB

Double 96MB

32MB

Double -

32MB

32MB

Double -

3 2 M B D o u b l e -

64MB

Double 32MB

Double -

64MB

Double 32MB

Double 1MB

Single

1MB

Single 66MB

Double 32MB

Double 2MB

Double -

66MB

Double 32MB

Double 2MB

Double 2MB

Double 68MB

*

If you install SlMMs in both Bank 0 and Bank 1 or Bank 2 and Bank 3, SIMM

types must match.

Use only tin-plated, 32-bit, 72-pin, fast-page mode SIMMs
that operate at an access speed of 80ns or faster. Be sure all
the SIMMs operate at the same speed.

Video Memory

The computer comes with 1MB of video memory. You can
increase the video memory to 2MB by installing two 512KB,
40-pin SOJ flat pack video DRAM chips. (You cannot
increase video memory by installing just one chip.)

Video resolutions and colors

Resolution
640 x 480

800 x 600

1024 x 768

1280 x 1024

Memory

Refresh

60/72/75

8 bits/pixel

* Non-interlaced and interlaced

** Interlaced

External Cache

You can install 128KB, 256KB, or 512KB of external cache
with 32K x 8, 64K x 8, or 128K x 8 15ns or 20ns, SRAM DIP
chips and one 32K x 8 15ns or 20ns tag chip. The computer
may already have cache installed.

You must install cache in one of the configurations in the
table below (each bank contains four cache memory sockets).

Cache memory configurations

BANK 0
U23, 24, 25, 26
32K x 8, 28-pin
32K x 8, 28-pin
64K x 8, 28-pin
128K x 8, 32-pin

BANK 1
U27, 35, 36, 37
None
32K x 8, 28-pin
64K x 8, 28-pin
None

Processor Upgrades

Tag SRAM
U30
32K x 8, 28-pin
32K x 8, 28-pin
32K x 8, 28-pin
32K x 8, 28-pin

Total cache

128KB

256KB
512KB
512KB

The computer’s processor can be upgraded by replacing the

existing processor with a faster one. The following table lists
supported processors and voltages.

Supported processors

Hard Disk Drive Types

Your computer comes with a hard disk auto-sensing feature.
To use it, select one of the drives you have installed from the

Fixed Disk Setup screen. On the screen that appears for that
drive, press

Enter

to select the Autotype Fixed Disk

option. The system detects the type of hard disk drive, fills in

the drive’s parameters, and sets the remaining options on the
screen.

6 - ActionPC 7000, ActionTower 7000, Endeavor 486i 5/19/95

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