UNIDENTIFIED

386SX-25/33 (ALI M1217)

Processor

80386SX

Processor Speed

25/33MHz

Chip Set

ALI

Video Chip Set

None

Maximum Onboard Memory

16MB

Maximum Video Memory

None

Cache

None

BIOS

AMI/Award

Dimensions

220mm x 170mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J4

Turbo switch/LED

J8

Reset switch

J6

Power LED & keylock

J9

Speaker

J7

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Address delay enabled

J5

Pins 1 & 2 closed

 

Address delay disabled

J5

Open

 

NPU synchronous with CPU

JP2

Pins 1 & 2 closed

 

NPU asynchronous with CPU

JP2

Pins 2 & 3 closed

 

CMOS chip type US1287

JP3

Closed

 

CMOS chip type 146818

JP3

Open

 

Monitor type select color

JP4

Pins 2 & 3 closed

 

Monitor type select monochrome

JP4

Pins 1 & 2 closed

 

Parity enabled

JP6

Closed

 

Parity disabled

JP6

Open

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

8MB

(2) 4M x 9

None

16MB

(2) 4M x 9

(2) 4M x 9

CPU SPEED SELECTION

Speed

JP1

JP5

25MHz

Pins 1 & 2 closed

Pins 1 & 2 closed

33MHz

Pins 2 & 3 closed

Pins 2 & 3 closed