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EQUITY 386SX/20 PLUS
Computer Specifications
CPU and Memory
CPU
System memory
ROM
Shadow RAM
Cache controller
CacheRAM
Math coprocessor
(0pti-u
CkXk/Cd~dar
Controllers
Diskette
80386sx microptocgsor, 20
MHZ
system
dock
speed, 20 MHz or simulated 8 MHz
proceaor
sped, selectable through software
or keyboard command
0 wait state memory access speed at
ZOMHZ
~~stanc&d;basememoryof64XB
Memory expandable using
256KB,
IMB,
or
MB
SlMMs
up to
14MB
(maximum); SIMMs must be fast-page mode,
8ons access
sped
(or faster)
128KB
(includes system BIOS and VGA
BIOS)
0 wait state access speed; automaticatly
copies both ROM BIOS
and
video ROM into
A382o2sx (2oMliz) standard
32KB
hi&qeed
(25x1s)
static
RAM
80387SX (20 MHz) support
Real-time clock, calendar, and
114-byte
CMOS RAM for
ConfIguration;
banerytJ=w
supports up to two drive in any of four
formats: 5
1
/knch,
highdensity,
1.2MB;
5
l/4-inch.
double-density,
36oKB;
3
1/2-m&
highdtity,
1.44MB;
or
3
1/2-m&
double-density, ROKB; controller
on main system board
Hard disk
Interfaces
Monitor
serial
Parallel
Keyboard
option slots
Speaker-
Power Supply
Type
Input ranges
Maximum outputs
Mass Storage
Diskette drives
Hard disk drives
supports up to two half-height drives;
embedded controller; interface on main
system board
VGA adapter with
512KB
DRAh4
(video
memory) built
into main
system board;
sqportsupto800x600pixelsin16-co10lscX
up to 640 x
480
pixels in
256-colors;
multi-
frequency monitor required for resolutiow
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15-pin+
D-she.n
ConnectoT
RSZQC,
programmable, asynchronous;
g-pin.
D-shell clxlnecta
Standard
&bit
parallel,
mon~o&;
2api&D-sheuconnector
Mini DIN,
6-pin
connector
for
PS/2
compatible mouse or other device
Mini DIN,
apin
connector for
PS/2
compatiMe
keyboard
Four standard input/output expansion slots
(three
l&bit
ISA compatible and
ogle
&bit
ISA
compatiile);
8 MHz bus speed
Internal; operation controllable by software
14OW,
fan-cooled, automatic (worldwide)
input voltage sensing
98 to 132 VAC and 195 to 264 VAC
+5
VDC at 18 Amps,
+12
VDC at
4.2 Amps
-l2VDCat03Amps,-5VlXat
03 Amps
+12
VDC at 6 Amps, peak (10 seconds)
Up to three half-height drives maximum (one
vertical mount and two horizontal mounts)
configurable
using
any of the foIlowing drive
types (only horizontal mounts
canbe
accessed externally):
5 l/4-inch diskette drive,
1.2MB
(hi&-d-w)
d-ge
q=dty
3 l/2-inch diskette drive,
1.44MB
e$w==w
amge
=padty
5
1/44nch
diskette drive,
36OKB
(double-density) storage capadty
3 l/2-inch
&kette
drive,
ROKB
(doublf%chsity) storage capacity
3
l/2-inch
form factor hard disk drive(s);
up to half-height size;
first
drive mounted
vertically, second mounted
hohm&lly
Equity
Series Computers
3/6/91
386SX/20 PLUS-1