UNIDENTIFIED

NEXT-286

Processor

80286

Processor Speed

12/16/20MHz

Chip Set

Protech

Max. Onboard DRAM

1MB

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J10 (pins 1 & 2)

Reset switch

J15

Power LED

J10 (pins 3 & 4)

Reset switch

J16

Turbo switch

J11

Turbo LED

LED

Keylock

J14

   

Note: The location of jumper LED is unidentified.

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

BIOS type select 27128

J9

pins 1 & 2 closed

 

BIOS type select 27256

J9

pins 2 & 3 closed

»

I/O wait state select 0 wait states

J12

Closed

 

I/O wait state select 1 wait state

J12

Open

»

Factory configured - do not alter

J13

Closed

»

Factory configured - do not alter

SW1/1

Off

»

NPU disabled

SW1/2

On

 

NPU enabled

SW1/2

Off

DRAM CONFIGURATION

Size

Bank 0

Parity 0

Bank 1

Parity 1

256KB

(18) 41256

(2) 44256

NONE

NONE

512KB

(18) 41256

(2) 44256

(18) 4164

NONE

640KB

(18) 41256

(2) 44256

(18) 4464

NONE

1MB

(18) 41256

(2) 44256

(18) 41256

(2) 44256

CACHE CONFIGURATION

Size

SW1/3

SW1/4

256KB

Off

Off

512KB

Off

On

640KB

On

Off

1MB

On

On

VIDEO TYPE CONFIGURATION

Type

SW1/5

SW1/6

CGA (40 x 20)

Off

On

CGA (80 x 25)

On

Off

EGA/VGA

On

On

Monochrome

Off

Off

FLOPPY DRIVE CONFIGURATION

Type

SW1/7

SW1/8

Drive A 5.25"

On

Off

Drive B 5.25"

Off

On

Drive A 3.50"

Off

On

Drive B 3.50"

On

Off