...because we can't all be on the bleeding edge...





386SX25/20/16

UNIDENTIFIED

386SX25/20/16

Processor

80386SX

Processor Speed

16/20/25MHz

Chip Set

OPTI

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

223mm x 218mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP2

Reset switch

JP10

Speaker

JP8

Turbo switch

JP11

Power LED & keylock

JP9

Turbo LED

JP12

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select monochrome

JP1

Open

 

Monitor type select color

JP1

Closed

CMOS memory normal operation

JP3

pins 2 & 3 closed

 

CMOS memory clear

JP3

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Parity (P-2)

Bank 3

Parity (P-3)

1MB

(2) 256K x 9

(2) 256K x 9

NONE

NONE

NONE

NONE

1MB

NONE

NONE

(4) 44256

(2) 41256

(4) 44256

(2) 41256

2MB

(2) 256K x 9

(2) 256K x 9

(4) 44256

(2) 41256

(4) 44256

(2) 41256

3MB

(2) 256K x 9

(2) 256K x 9

(4) 441000

(2) 411000

NONE

NONE

3MB

(2) 1M x 9

NONE

(4) 44256

(2) 41256

(4) 44256

(2) 41256

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

NONE

NONE

4MB

NONE

NONE

(4) 441000

(2) 411000

(4) 441000

(2) 411000

5MB

(2) 1M x 9

(2) 1M x 9

(4) 44256

(2) 41256

(4) 44256

(2) 41256

5MB

(2) 256K x 9

(2) 256K x 9

(4) 441000

(2) 411000

(4) 441000

(2) 411000

6MB

(2) 1M x 9

(2) 1M x 9

(4) 441000

(2) 411000

NONE

NONE

6MB

(2) 1M x 9

NONE

(4) 441000

(2) 411000

(4) 441000

(2) 411000

8MB

(2) 1M x 9

(2) 1M x 9

(4) 441000

(2) 411000

(4) 441000

(2) 411000

10MB

(2) 1M x 9

(2) 4M x 9

NONE

NONE

NONE

NONE

12MB

(2) 4M x 9

NONE

(4) 441000

(2) 411000

(4) 441000

(2) 411000

16MB

(2) 4M x 9

(2) 4M x 9

NONE

NONE

NONE

NONE

DRAM JUMPER CONFIGURATION

Size

JP4

JP5

JP6

JP7

JP8

JP9

1MB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

1MB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

2MB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

3MB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

3MB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

4MB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

4MB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

5MB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

5MB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

6MB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

6MB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

8MB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

10MB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

12MB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

16MB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

Note:Pins designated should be in the closed position.