Epson Endeavor Product Information Guide - Page 1

EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50 pourer hard disk (SPEED) light access light diskette drive power bWon hay for hard disk. diskette, tape, CD-ROM, or other drive 110/220 VAC switch option card slots power keyboard serial serial inlet port port 1 port 2 mouse port \ parallel VGA monitor port port Computer Specifications CPU and Memory 32-bit CPU 4SX/25: Intel® i486SX, 25 MHz microprocessor; can be replaced with optional 487SX/25 or ODP486-25 OverDriveT" processor 4DX/33: Intel i486DX, 33 MHz microprocessor; can be replaced with optional ODP486-33 OverDrive processor 4DX2/50: Intel i486DX2, 50 MHZ microprocessor System speed High and low speeds available; high speed depends on CPU (25 MHz, 33 MHz, or 50 MHz), low speed is simulated 8 MHz speed; speed selection through keyboard command; 0 wait state memory access at highspeed Memory ROM Video RAM Shadow RAM Cache Math coprocessor Clock/calendar To select low speed, press the Ctrl, Alt, and - keys simultaneously. To select high speed, press the Ctrl, Alt, and + keys simultaneously. (Use the - or + key on the numeric keypad.) 4MB RAM standard on a SIMM; expandable using 1MB, 4MB, or 16MB SIMMs to 32MB (maximum); SIMMs must be 36-bit, fast-page mode type with 70ns (or faster) access speed 128KB system BIOS, video BIOS, and SETUP code located in EPROM on main system board 512KB or 1MB DRAM on main system board; 512KB configuration expandable to 1MB Supports shadowing of system and video BIOS ROM into RAM 8KB of internal cache (built into the microprocessor) On 4DX/33 and 4DX2/50 systems, math coprocessor built into the microprocessor; optional 487 upgrade available for 4SX/25 system Real-time clock, calendar, and CMOS RAM socketed on main system board with built-in battery backup Controllers Video Diskette Hard disk Cirrus® VGA controller on main system board; provides resolutions up to 1024 x 768 Controller on main system board supports up to two diskette drives or one diskette drive and one tape drive Interface on main system board supports up to two IDE hard disk drives with built-in controlIers Interfaces Monitor Parallel Serial VGA interface built into main system board for analog or multifrequency VGA monitor; 15-pin, D-shell connector One standard &bit parallel, uni- or bidirectional interface built into main system board; I/O address selectable through SETUP; 25-pin, D-shell connector Two RS-232C, programmable, asynchronous interfaces built into main system board; 9-pin, D-shell connectors 4/1/93 EPSON Endeavor-1