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386SX P9

UNIDENTIFIED

386SX P9

Processor

80386SX

Processor Speed

16MHz

Chip Set

OPTI

Max. Onboard DRAM

2MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card slot

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J1

Turbo LED

J5

Power LED & keylock

J2

External battery

J6

Speaker

J3

32-bit external memory card

S1

Turbo switch

J4

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Turbo LED enabled

JP1

pins 2 & 3 closed

 

Turbo LED disabled

JP1

pins 1 & 3 closed

Factory configured - do not alter

JP2

Open

NPU mode select synchronous with CPU

JP3

Open

 

NPU mode select asynchronous with CPU

JP3

Closed

NPU enabled

JP4

Closed

 

NPU disabled

JP4

Open

Factory configured - do not alter

JP5

Closed

Factory configured - do not alter

JP6

Closed

Crystal select OSC2

JP7

pins 2 & 3 closed

 

Crystal select OSC1

JP7

pins 1 & 2 closed

Monitor type select color

J8

Closed

 

Monitor type select monochrome

J8

Open

Power good signal detect from power supply

JP9

pins 1 & 2 closed

 

Power good signal detect from board

JP9

pins 2 & 3 closed

BIOS type select 27256

JP10

pins 1 & 2 closed

 

BIOS type select 27128

JP10

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(4) 44256

NONE

NONE

NONE

1MB

(4) 44256

(4) 44256

NONE

NONE

1.5MB

(4) 44256

(4) 44256

(4) 44256

NONE

2MB

(4) 44256

(4) 44256

(4) 44256

(4) 44256

DRAM PARITY CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(2) 41256

NONE

NONE

NONE

1MB

(2) 41256

(2) 41256

NONE

NONE

1.5MB

(2) 41256

(2) 41256

(2) 41256

NONE

2MB

(2) 41256

(2) 41256

(2) 41256

(2) 41256