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386A Motherboard Settings and Configuration

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UNIDENTIFIED

386A

Processor

80386DX

Processor Speed

20/25MHz

Chip Set

C & T

Max. Onboard DRAM

8MB

Cache

None

BIOS

AMI

Dimensions

330mm x 225mm

I/O Options

32-bit external memory card slot

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

J16

Power LED & keylock

J20

Turbo switch

J17

External battery

J21

Reset switch

J18

32-bit external memory card

S1

Speaker

J19

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

NPU select 3167 or none

JP1

pins 3 & 4 closed

 

NPU select 80387

JP1

pins 1 & 2 closed

»

Monitor type select monochrome

JP5

pins 1 & 2 closed

 

Monitor type select color

JP5

pins 2 & 3 closed

»

Battery type select internal

JP7

pins 1 & 2 closed

 

Battery type select external

JP7

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

DRAM JUMPER CONFIGURATION

Size

JP2

JP2A

JP3

JP3A

1MB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

2MB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

4MB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

8MB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

JP4

20MHz

pins 1 & 2 closed

25MHz

pins 2 & 3 closed


Tags

386A, motherboard, processor, socket, pentium, pentium pro, celeron, powerpc, alpha, 8088, 8086, 286, 386, 486, configuration, RAM, DRAM, floppy, jumper, connections







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