Epson ActionDesk 4000 Product Information Guide - Page 1

power speed achcaerdssdislikght (TURBO) light optional drive bay \ I I power button / I diskette drive \ reset button monitor cable AC inlet AC outlet MOUSE PARALLEL Computer Specifications CPU and Memory 32-bit CPU Intel 486SX/25, 486SX/33, 486DX/33, 486DX2/50, or 486DX2/66 microprocessor System speed Fast and slow speeds available; fast is the speed of the microprocessor, slow is 8 MHz; speed selection through keyboard commands or jumper setting Memory 4MB RAM standard on a SIMM; expandable to 64MB using 1MB, 2MB, 4MB, 8MB, 16MB, and 32MB SIMMs; SIMMs must be tin-plated, 72-pin, 32-bit or 36bit, fast-page mode type with access speed of 80ns (with 1 wait state) or 70ns or faster (with 0 wait state) Epson ActionDesk 4000 ROM Video RAM Shadow RAM Cache Math coprocessor Clock/calendar Controllers Video Diskette Hard disk Interfaces Monitor Parallel Serial Keyboard Mouse 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 On DX and DX2 systems, math coprocessor built into the microprocessor Contained in the 82C491 system controller chip along with 64 bytes of CMOS RAM backed up by a soldered NiCad rechargeable battery Cirrus GD5426 high speed super VGA local bus controller with True Color support; with the standard 1MB of video RAM, supports resolutions up to 1280 x 1024 in 16 colors; with 2MB of video RAM installed, supports resolutions up to 1280 x 1024 in 256 colors Controller on main system board supports up to two diskette drives High-speed, 32-bit local bus IDE interface on main system board supports up to two IDE hard disk drives with built-in controller; BIOS provides hard disk auto-sensing function VGA interface for fixed or multifrequency monitor built into system board; 15-pin, D-shell connector One standard &bit parallel interface built into main system board; 25-pin, D-shell connector Two RS-232C, programmable, asynchronous interfaces built into main system board; 9-pin, D-shell connectors PS/2 compatible keyboard interface built into main system board; 6-pin, mini DIN connector PS/2 compatible mouse interface built into main system board; 6-pin mini DIN connector 9/15/93 Epson ActionDesk 4000-1