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SIMM Installation
The computer comes with 4MB or 8MB of memory on a
SIMM. You can increase the
64MB by installing additional SIMMs. There are four SIMM
sockets on the main system board, and each can contain one
SIMM. You can install 1MB, 2MB, 4MB, 8MB, 16MB, and
32MB SIMMs.
The following table shows the possible SIMM configurations.
Do not install
in any other configuration.
memory
SIMM configurations
Video Memory
The computer comes with 1MB of onboard video memory,
expandable to 2MB using eight video DRAM, 256KB x 4 x 4,
20-pin, DIP chips. For the memory to work properly, you
must install one chip in each of the empty video memory
sockets (U34 through U41) on the system board.
6 - NEW EPSON ActionPC 5000, ActionTower 5000
in this computer up to
memory
Video resolutions, colors, and refresh rates
Memory
Requirements
Resolution
(MB)
640X480
1
1
1
Non-interlaced and Interfaced
l
** Interfaced
External Cache
You can install 64KB, 128KB, or 256KB of external cache in
these systems. Use 8 x 8, 20ns DIP chips or 32 x 8, 20ns DIP
chips (15ns tag chip in 486DX/50 or Pentium OverDrive
systems) in the following configurations:
Cache memory configurations
BANK 1 (U48-51)
BANK 0 (U44-47)
8 K x 8
8 K x 8
32Kx8
(empty)
3 2 K x 8
3 2 K x 8
Microprocessor Upgrades
The computer's processor can be upgraded by replacing the
existing microprocessor with a faster one. You can either
purchase
upgrade kit from EPSON or buy the individual
an
components separately.
Microprocessor upgrade components
processor
4/75
processor
4/100
A heat sink is necessary for all DX, DX2, DX4. and Pentium OverDrive
processors.
8/94
Refresh
Color
rates (Hz)
Remarks
256
60/72
8 bits/pixel
32K/64K
60
16 bits/pixel
16.8M (True
60
24 bits/pixel
Tag SRAM (U43)
Total cache
8Kx8
64KB
8Kx8
128KB
256KB
3 2 K x 8
Intel
3.45
Intel
3.3
Intel
Volt
5
-
Volt
Volt