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VLSI 80386SX Motherboard Settings and Configuration






UNIDENTIFIED

VLSI 80386SX

Processor

80386SX

Processor Speed

16/20/25MHz

Chip Set

VLSI

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J2

Speaker

J7

Turbo switch

J5

Reset switch

J8

Power LED & keylock

J6

Turbo LED

J9

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CPU speed select forced slow

J5

Closed

 

CPU speed select switchable at keyboard

J5

Open

Monitor type select color

J1

Closed

 

Monitor type select monochrome

J1

Open

Battery type select internal

J4

pins 2 & 3 closed

 

Battery type select external

J4

pins 1 & 2 closed

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








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