UNIDENTIFIED

ELT-286B-120GM

Processor

80286

Processor Speed

10/12MHz

Chip Set

G-2

Max. Onboard DRAM

4MB

Cache

None

BIOS

AMI/Phoenix

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

J5

External battery

J24

Power LED & keylock

J18

Turbo switch

J25

Speaker

J19

Reset switch

J30

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Factory configured - do not alter

DSW1/1

N/A

»

NPU mode select synchronous with CPU

JNP

pins 1 & 2 closed

 

NPU mode select asynchronous with CPU

JNP

pins 2 & 3 closed

»

Wait state select CTRL-ALT-0 = 0 wait, CTRL-ALT-1 is 1 wait

JP2

pins 1 & 2 closed

 

Wait states select zero

JP2

pins 2 & 3 closed

 

Wait state select one

JP2

Open

»

Factory test disabled

JP22

Open

 

Factory test enabled

JP22

Closed

»

CPU speed select switchable from keyboard

JP25

Open

 

CPU speed select fast

JP25

Closed

»

Factory configured - do not alter

JPX

N/A

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

Bank 4

Bank 5

256KB

(4) 44256

(2) 41256

NONE

NONE

NONE

NONE

256KB

NONE

NONE

NONE

NONE

(2) 256K x 9

NONE

512KB

(4) 44256

(2) 41256

NONE

NONE

NONE

NONE

512KB

NONE

NONE

NONE

NONE

(2) 256K x 9

NONE

640KB

(4) 44256

(2) 41256

(4) 4464

(4) 4164

NONE

NONE

640KB

NONE

NONE

(4) 4464

(4) 4164

(2) 256K x 9

NONE

1MB

(4) 44256

(2) 41256

(4) 44256

(2) 41256

NONE

NONE

1MB

NONE

NONE

NONE

NONE

(2) 256K x 9

(2) 256K x 9

2MB

NONE

NONE

NONE

NONE

(2) 1M x 9

NONE

4MB

NONE

NONE

NONE

NONE

(2) 1M x 9

(2) 1M x 9

DRAM SWITCH CONFIGURATION

Size

DSW1/2

DSW1/3

DSW1/4

256KB

On

On

On

512KB

On

On

Off

640KB

On

Off

On

1MB

On

Off

Off

2MB

Off

Off

On

4MB

Off

Off

Off