Epson 4DX/33 - Manual

EPSON Endeavor 4SX/25, 4DX/33, and 4DX2/50
hard disk diskette
(SPEED) light access light drive
Memory
ROM
hay for hard diskette,
tape, CD-ROM, or other drive
110/220 VAC switch option card slots
power keyboard serial serial
inlet port port 1 port 2 \
VGA
parallel
monitor
mouse
port
port port
Video RAM
Shadow RAM
Cache
Math
coprocessor
Clock/calendar
Controllers
Video
Computer Specifications
D i s k e t t e
CPU and Memory
32-bit CPU 4SX/25: Intel® i486SX, 25 MHz
microprocessor; can be replaced with
optional 487SX/25 or ODP486-25
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
Hard disk
Interfaces
Monitor
Parallel
Serial
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
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
VGA interface built into main system
board for analog or multifrequency VGA
monitor; 15-pin, D-shell connector
One standard &bit parallel, uni- or bi-
directional 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