Epson ActionDesk 4000 User Manual - Page 116
Appendix A-specifications, Cpu And Memory
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Appendix A Specifications CPU and Memory 32-bif CPU System speed Memory ROM Video RAM Shadow RAM Cache Intel 486SX/25, 486SX/33, 486DX/33, 486DX2/50, or 486DX2/66 microprocessor Fast and slow speeds available; fast is the speed of the microprocessor, slow is 8 MHz; speed selection through keyboard commands or jumper setting 4MB RAM standard on a SIMM; expandable to 64MB using lMB, 2MB, 4MB, 8MB, 16MB, and 32MB SIMMs; SIMMs must be tin-plated, 72-pin, 32-bit or 36-bit, fast-page mode type with access speed of 80ns (with 1 wait state) or 70ns or faster (with 0 wait state) 128KB system BIOS, video BIOS, and SETUP code located in EPROM on main system board 1MB DRAM on main system board; expandable to 2MB using two ZIP chips Supports shadowing of system and video BIOS ROM into RAM 8KB of internal cache; supports 64KB, 128KB, or 256KB of external cache using 28-pin, 8 x 8, 20ns DIP chips or 28-pin, 32 x 8, 20ns DIP chips Specifications A-1
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