MONOLITHIC SYSTEMS, INC. (COLORADO MSI)

SBC486PE PEISA SINGLE BOARD

Processor

80486SX/80386DX/80486DX2

Processor Speed

25/33/40/50(internal)/50/66(internal)MHz

Chip Set

Intel

Max. Onboard DRAM

128MB

Cache

128/256KB (on 32-bit external cache module)

BIOS

AMI

Dimensions

339mm x 127mm

I/O Options

32-bit external cache module slot, PS/2 mouse port, PS/2 keyboard connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface LED

J1

Power LED & keylock

J7

Reset switch

J2

Auxiliary keyboard

J8

Power LED

J3

PS/2 keyboard

J9

External battery

J4

PS/2 mouse

J11

Front panel switches & LEDs

J5

32-bit external cache module

S1

Speaker

J6

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

J10

Open

 

CMOS memory clear

J10

Closed

»

Monitor type select color

J12

Closed

 

Monitor type select monochrome

J12

Open

»

Watchdog timer disabled

J13

pins 2 & 3 closed

 

Watchdog timer enabled

J13

pins 1 & 2 closed

»

Factory configured - do not alter

J14

Closed

»

Factory configured - do not alter

J14

Closed

»

DMA signal select active high

J16

pins 1 & 2 closed

 

DMA signal select active low

J16

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 512K x 36

NONE

NONE

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 512K x 36

(1) 512K x 36

NONE

NONE

6MB

(1) 512K x 36

(1) 512K x 36

(1) 512K x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

16MB

(1) 4M x 36

NONE

NONE

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 8M x 36

NONE

NONE

NONE

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

96MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

NONE

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

Note:These are only some of the possible configurations. All modules must be of like capacity.