NORTHGATE COMPUTER SYSTEMS, INC.

SLIMLINE ZXP

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

16/20/25/33/50 (Internal)/66 (Internal)MHz

Chip Set

OPTI

Max. onboard DRAM

128MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, parallel port,

riser card, serial ports (2), VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

Turbo LED

P1

Serial port (COM1)

CN2

Power LED & keylock

P2

Serial port (COM2)

CN3

Speaker

P3

VGA port

CN4

IDE interface LED

P4

IDE interface

CN5

Reset switch

P5

Floppy drive interface

CN6

Riser Card

S1

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Onboard video disabled

J5

Closed

 

Onboard video enabled

J5

Open

»

Monitor type select color

J11

Closed

 

Monitor type select monochrome

J11

Open

»

Parallel port select uni-directional (printer)

J12

Closed

 

Parallel port select bi-directional

J12

Open

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) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

NONE

65MB

(4) 16M x 9

(4) 256K x 9

68MB

(4) 16M x 9

(4) 1M x 9

80MB

(4) 16M x 9

(4) 4M x 9

128MB

(4) 16M x 9

(4) 16M x 9

VRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(8) 8K x 8

Banks 0 & 1

1024KB

(4) 32K x 8

Bank 0

VRAM JUMPER CONFIGURATION

Size

J6

J7

512KB

On

Off

1024KB

Off

On

CPU SPEED CONFIGURATION

Speed

J8

J9

J10

16MHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

20MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

25MHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

33MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

50i MHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

66i MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Speed

J1

J2

J3

J4

80486SX

Open

Open

Open

Open

80487SX

Closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

80486DX

Closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

ODP486SX

Closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

80486DX2

Closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed