HwMuseum | Index

DEICO ELECTRONICS, INC.

486-ISA

Processor

80486SX

Processor Speed

25/33MHz

Chip Set

Unidentified

Max. Onboard DRAM

32MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, parallel port, serial ports (2)

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo LED

JP25

Serial port 1

J13

Speaker

JP26

Serial port 2

J14

Power LED & keylock

JP27

Parallel port

J30

IDE interface LED

JP33

Floppy drive interface

J31

Reset switch

JP34

IDE interface

J32

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

JP1

pins 1 & 2 closed

 

CMOS memory clear

JP1

pins 2 & 3 closed

»

Monitor type select color

JP2

pins 1 & 2 closed

 

Monitor type select monochrome

JP2

pins 2 & 3 closed

»

Internal battery enabled

JP3

pins 1 & 2 closed

 

Internal battery disabled

JP3

pins 2 & 3 closed

»

Burst rate select normal operation

JP4

pins 1 & 2 closed

 

Burst rate select fast burst

JP4

pins 2 & 3 closed

»

Serial port IRQ3 select COM2

JP7

pins 2 & 3 closed

 

Serial port IRQ3 select COM1

JP7

pins 1 & 2 closed

 

Serial port IRQ3 disabled

JP7

pins 3 & 4 closed

»

Serial port IRQ4 select COM1

JP8

pins 1 & 2 closed

 

Serial port IRQ4 select COM2

JP8

pins 2 & 3 closed

 

Serial port IRQ4 disabled

JP8

pins 3 & 4 closed

»

Serial port IRQ9 disabled

JP9

pins 3 & 4 closed

 

Serial port IRQ9 select COM1

JP9

pins 1 & 2 closed

 

Serial port IRQ9 select COM2

JP9

pins 2 & 3 closed

»

Serial port IRQ5 disabled

JP10

pins 3 & 4 closed

 

Serial port IRQ5 select COM1

JP10

pins 1 & 2 closed

 

Serial port IRQ5 select COM2

JP10

pins 2 & 3 closed

»

Parallel port IRQ disabled

JP11

pins 3 & 4 closed

 

Parallel port IRQ select IRQ7

JP11

pins 1 & 2 closed

 

Parallel port IRQ select IRQ5

JP11

pins 2 & 3 closed

»

Floppy drive interface enabled

JP12

pins 1 & 2 closed

 

Floppy drive interface disabled

JP12

pins 2 & 3 closed

»

Serial port 1 COM select COM1

JP13

pins 1 & 2 closed

 

Serial port 1 COM select COM3

JP13

pins 2 & 3 closed

 

Serial port 1 COM select disabled

JP13

pins 3 & 4 closed

»

Serial port 2 COM select COM2

JP14

pins 1 & 2 closed

 

Serial port 2 COM select COM4

JP14

pins 2 & 3 closed

 

Serial port 2 COM select disabled

JP14

pins 3 & 4 closed

»

Parallel port LPT select LPT1

JP15

pins 1 & 2 closed

 

Parallel port LPT select LPT2

JP15

pins 2 & 3 closed

 

Parallel port LPT select disabled

JP15

pins 3 & 4 closed

»

Factory configured - do not alter

JP16

Open

»

BIST mode select normal operation

JP17

pins 2 & 3 closed

 

BIST mode select 486 BIST

JP17

pins 1 & 2 closed

»

IDE interface enabled

JP19

pins 1 & 2 closed

 

IDE interface disabled

JP19

pins 2 & 3 closed

Note: The location of JP4 is unidentified.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9