NEW EPSON ActionPC 5000, ActionTower 5000
SIMM Installation
The computer comes with 4MB or 8MB of memory on a SIMM. You can increase the memory in this computer up to 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 memory in any other configuration.
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,
Video resolutions, colors, and refresh rates
| Memory |
| Refresh |
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| Requirements |
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Resolution | (MB) | Color | rates (Hz) | Remarks | |
640X480 | 1 | 256 | 60/72 | 8 | bits/pixel |
| 1 | 32K/64K | 60 | 16 | bits/pixel |
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| 1 | 16.8M (True | 60 | 24 | bits/pixel |
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**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 0 | BANK 1 | Tag SRAM (U43) | Total cache |
8 K x 8 | 8 K x 8 | 8Kx8 | 64KB |
32Kx8 | (empty) | 8Kx8 | 128KB |
3 2 K x 8 | 3 2 K x 8 | 3 2 K x 8 | 256KB |
Microprocessor Upgrades
The computer’s processor can be upgraded by replacing the existing microprocessor with a faster one. You can either purchase an upgrade kit from EPSON or buy the individual components separately.
Microprocessor upgrade components
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| 4/75 processor | Intel | 3.45 Volt | |
| 4/100 | processor | Intel | 3.3 Volt | |
1 Pentium | OverDrive processor | Intel | 5 Volt | ||
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1 Heat sink’ | Tennmax Trading Corp. | - | |||
A heat sink is necessary for all DX, DX2, DX4. and Pentium OverDrive processors.
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