UNIDENTIFIED

386SX-16 SYSTEM

Processor

80286/80386SX

Processor Speed

16MHz

Chip Set

Headland

Video Chip Set

Ahead

Maximum Onboard Memory

4MB

Maximum Video Memory

1MB

Cache

None

BIOS

Phoenix

Dimensions

340mm x 300mm

I/O Options

Floppy drive interface, IDE interface, parallel port, serial port, VGA port

NPU Options

80287/80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface LED

HDD2

Parallel port

J7

Floppy drive interface

J2

VGA port

J8

IDE interface

J4

External battery

JP3

Serial port

J6

Reset switch

JP4

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

JP2

Unidentified

»

Factory configured - do not alter

JP5

Unidentified

 

Parallel port enabled

JP11

Closed

 

Parallel port disabled

JP11

Open

 

Serial port enabled

JP12

Closed

 

Serial port disabled

JP12

Open

»

Factory configured - do not alter

JP16

Unidentified

 

CGA emulation IRQ2 disabled

JP300

Open

 

CGA emulation IRQ2 enabled

JP300

Closed

»

Factory configured - do not alter

JP303

Unidentified

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

4MB

(2) 1M x 9

(2) 1M x 9

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

256KB

(2) 44256

None

None

None

512KB

(2) 44256

(2) 44256

None

None

1MB

(2) 44256

(2) 44256

(2) 44256

(2) 44256

VIDEO MEMORY JUMPER CONFIGURATION

Size

JP301

JP302

256KB

Open

Open

512KB

Open

Closed

1MB

Closed

Closed