Processor

80286

Processor Speed

12/16MHz

Chip Set

Headland

Max. Onboard DRAM

4MB

SRAM Cache

None

BIOS

Quadtel

Dimensions

337mm x 132mm

I/O Options

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

NPU Options

80287

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo mode LED

J3

Serial port (COM1)

P5

IDE interface LED

J8

Serial port (COM 2)

P6

Parallel port

P1

Floppy drive interface

P7

VGA port

P2

IDE interface

P8

Video digital connector

P3

PIN OUT CONFIGURATION P4

Function

Pin

Power good signal (from power supply)

1

Keyboard ground

2

+ Keyboard clock

3

+ 5Vdc

4

+ Keyboard data

5

Ground

6

Reset switch

7

Keyboard inhibit switch

8

Speaker

9 & 10

Turbo switch

11 & 12

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Onboard video interrupt select IRQ9

J1

pins 1 & 2 closed

Onboard video interrupt select none

J1

pins 2 & 3 closed

»

Onboard floppy select DMA2

J2

Closed

Onboard floppy select no DMA

J2

Open

»

Monitor type select color

J4

Closed

Monitor type select monochrome

J4

Open

»

Parallel port select unidirectional (printer)

J5

pins 2 & 3 closed

Parallel port select bi-directional

J5

pins 1 & 2 closed

»

Power good signal detect from board

J6

Open

Power good signal detect from power supply

J6

Closed

»

VGA clock synchronous with CPU

J7

Open

VGA clock synchronous with oscillator O3

J7

Closed

»

IDE interface enabled

J9

pins 2 & 3 closed

IDE interface disabled

J9

pins 1 & 2 closed

Note: If J6 is closed, power good signal must come from P4/pin 1. If J6 is open, DO NOT connect P4/pin1!

. DRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(2) 256k x 9

NONE

1MB

(2) 256k x 9

(2) 256k x 9

2MB

(2) 1M x 9

NONE

2.5MB

(2) 256K x 9

(2) 1M x 9

4MB

(2) 1M x 9

(2) 1M x 9

CPU SPEED CONFIGURATION

CPU

OSC/2

J10

»

16MHz

16MHz

Closed

12MHz

24MHz

Open