Epson EL 4S/33 Product Information Manual

reset
button
access light
monitor cable
AC inlet AC outlet
COM1 COM2 Parallel

Computer Specifications

CPU and Memory
32-bit CPU
Cyrix Cx486SLC, 33 MHz microprocessor
with 16-bit data bus
Internal cache
1KB built into microprocessor
hard disk or diskette
drive bay
diskette drive
I I
I
System speed
power
button
Memory
ROM
Video RAM
Shadow RAM
Math
coprocessor
option
Card
Clock/calendar
slots
Controllers
Video
\
Game
Diskette
Hard disk
Interfaces
Monitor
Parallel
9/93
Epson EL 4S/33
High and low speeds available; high
speed is 33 MHz, low speed is 8 MHz;
speed selection through SETUP program
and keyboard commands; 0 or 1 wait state
memory access selectable through SETUP
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.)
2MB or 4MB RAM standard on SIMMs;
expandable using 256KB, 1MB, or 4MB
SIMMs to 16MB (maximum); SIMMs must
be 30-pin, fast-page mode type with 70ns
(or faster) access speed
Phoenix BIOS A386 V1.03; 64KB system
BIOS, video BIOS, and SETUP code
located in EPROM on main system board
256KB DRAM on main system board,
expandable to 512KB or 1MB using 70ns
or 80ns 44256 DIP chips
32KB or 64KB, 0 or 1 wait state access
speed; system ROM BIOS and video ROM
can be copied into RAM
Socket for Cyrix Cx83S87-33 math
coprocessor
Real-time clock, calendar, and CMOS
RAM socketed on main system board with
built-in battery backup
Trident VGA controller on main system
board; provides standard VGA
resolutions with 256KB memory and
extended VGA resolutions up to
1024 x 768 in 16 colors with 512KB
memory and 256 colors with 1MB memory
Controller on main system board supports
up to two diskette drives, maximum
Interface on main system board supports
up to two IDE hard disk drives,
maximum, with built-in controllers on the
hard disk drive itself
VGA interface built into main system
board for analog or multifrequency VGA
monitor; 15-pin, D-shell connector
One standard B-bit parallel, unidirectional
interface built into main system board;
25-pin, D-shell connector
Epson EL 4S/33-1