...because we can't all be on the bleeding edge...





486-ISA

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