Epson Powerspan Product Information Manual

reset
button
power
button
power
indicator
activity
indicator
keyboard
option slot 1
option slot 2
option slot 3
option slot 4
option slot 5
option slot 6
option slot 7
option slot 8

Computer Specifications

Main System Board
System memory
BIOS
mouse lock
button
Shadow RAM
keyboard/mouse lock
indicator
Video RAM
Clock/ calendar Real-time clock, calendar, and CMOS
CPU Card
CPU
Cache memory
se&or switch
OverDrive
AC inlet processor
mouse port
Interfaces
Monitor
Serial
Parallel
Mouse
Keyboard
Option slots
9/1/93
EPSON PowerSpan
8MB RAM standard on two 4MB SIMMs;
expandable using 1MB, 2MB, 4MB, 8MB,
16MB, or 32MB single- or double-sided
SIMMs up to 128MB (maximum); SIMMs
must be 80ns, 36-bit, 72-pin, tin-plated,
fast-page mode type; 16MB and 32MB
SIMMs may be 70ns, 36-bit, 72-pin,
tin-plated, fast-page mode type
256KB on two 128KB FLASH EEPROM
devices for system and video BIOS
Automatically copies the system BIOS
from ROM into RAM; shadow RAM
addresses for video BIOS and external
BIOS are software selectable
512KB
RAM for BIOS use; battery backup;
contents can be cleared to default values
by jumper setting
Intel 486DX2, 66 MHz microprocessor;
simulated 8 MHz processor speed
selectable through software or keyboard
command
8KB internal cache in the 486DX2/66
microprocessor; 128KB Intel cache module
with write-through, two-way set
associative cache memory and controller
486DX2 microprocessor on CPU card can
be replaced with optional Intel OverDrive
processor or CPU card can be replaced
with Intel Pentium CPU card
15-pin, D-shell analog connector
Two RS-232-C, 9-pin, D-shell connectors;
asynchronous
25-pin, D-shell connector; supports
IBM AT compatible or PS/2 compatible
(bidirectional) signals; software selectable
Mini DIN, 6-pin connector for PS/2
compatible mouse or other pointing device
Mini DIN, 6-pin connector for PS/2
compatible keyboard
Eight 32-bit EISA bus master expansion
slots (16-bit and 8-bit ISA compatible)
Epson PowerSpan-1