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MICROFRAME 486EX

MONOLITHIC SYSTEMS, INC. (COLORADO MSI)

MICROFRAME 486EX

Processor

80486DX

Processor Speed

25/33Mhz

Chip Set

C & T

Max. Onboard DRAM

64MB

Cache

None

BIOS

AMI

Dimensions

355mm x 304mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

CPU ready LED

J9

Power LED & keylock

J2

Auxiliary keyboard

J12

Disk acess connector

J3

PS/2 mouse port

J13

Front panel/ribbon cable connector

J7

Speaker

J28

Reset switch

J8

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

IRQ12 enabled for mouse

J11

pins 1 & 2 closed

 

IRQ12 disabled

J11

pins 2 & 3 closed

CPU speed select 25MHz

J29

pins 1 & 2 closed

 

CPU speed select 33MHz

J29

pins 2 & 3 closed

Wait state enabled

J30

Closed

 

Wait state disabled

J30

Open

Factory configured - do not alter

J35

Open

Factory configured - do not alter

J36

Open

CMOS memory normal operation

J45

Open

 

CMOS memory clear

J45

Closed

DMA active select high

J46

pins 1 & 2 closed

 

DMA active select low

J46

pins 2 & 3 closed

Factory configured - do not alter

SW1/switch 1

Off

Factory configured - do not alter

SW1/switch 2

Off

 

Factory configured - do not alter

SW1/switch 3

Off

Monitor type select color

SW1/switch 4

On

 

Monitor type select monochrome

SW1/switch 4

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(2) 4M x 36

NONE

NONE

NONE

16MB

(2) 4M x 36

(2) 4M x 36

NONE

NONE

16MB

NONE

(2) 8M x 36

NONE

NONE

24MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

NONE

24MB

NONE

(2) 4M x 36

(2) 8M x 36

NONE

32MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

32MB

NONE

(2) 8M x 36

(2) 8M x 36

NONE

32MB

NONE

(2) 4M x 36

(2) 4M x 36

(2) 8M x 36

40MB

NONE

(2) 4M x 36

(2) 8M x 36

(2) 8M x 36

40MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

(2) 8M x 36

48MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

(2) 8M x 36

48MB

NONE

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

56MB

(2) 4M x 36

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

64MB

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36