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386E 25MHZ Motherboard Settings and Configuration






UNIDENTIFIED

386E 25MHZ

Processor

80386DX

Processor Speed

25MHz

Chip Set

OPTI

Max. Onboard DRAM

16MB (8MB on external memory card)

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit external memory card

NPU Options

80387DX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo LED

J9

Power LED & keylock

J6

Reset switch

J10

Speaker

J7

32-bit external memory card

S1

Turbo switch

J8

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

J2

pins 1 & 2 closed

 

CMOS memory clear

J2

pins 2 & 3 closed

»

Monitor type select colot

J3

Closed

 

Monitor type select monochrome

J3

Open

»

Power good signal detect from board

J4 & J5

pins 1 & 2 closed

 

Power good signal detect from power supply

J4 & J5

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

3MB

(4) 256K x 9

(4) 256K x 9

(36) 256K x 1

NONE

4MB

(4) 256K x 9

(4) 256K x 9

(36) 256K x 1

(36) 256K x 1

4MB

(4) 1M x 9

NONE

NONE

NONE

5MB

(4) 256K x 9

(4) 1M x 9

NONE

NONE

5MB

(4) 1M x 9

(4) 256K x 9

NONE

NONE

6MB

(4) 256K x 9

(4) 256K x 9

(36) 1M x 1

NONE

6MB

(4) 256K x 9

(4) 1M x 9

(36) 256K x 1

NONE

6MB

(4) 1M x 9

(4) 256K x 9

(36) 256K x 1

NONE

7MB

(4) 256K x 9

(4) 256K x 9

(36) 1M x 1

(36) 256K x 1

7MB

(4) 256K x 9

(4) 1M x 9

(36) 256K x 1

(36) 256K x 1

7MB

(4) 1M x 9

(4) 256K x 9

(36) 256K x 1

(36) 256K x 1

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

9MB

(4) 256K x 9

(4) 1M x 9

(36) 1M x 1

NONE

9MB

(4) 256K x 9

(4) 1M x 9

(36) 1M x 1

NONE

9MB

(4) 1M x 9

(4) 1M x 9

(36) 256K x 1

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(36) 1M x 1

(36) 1M x 1

10MB

(4) 256K x 9

(4) 1M x 9

(36) 1M x 1

(36) 256K x 1

10MB

(4) 1M x 9

(4) 1M x 9

(36) 256K x 1

(36) 256K x 1

10MB

(4) 1M x 9

(4) 256K x 9

(36) 1M x 1

(36) 256K x 1

12MB

(4) 1M x 9

(4) 1M x 9

(36) 1M x 1

NONE

13MB

(4) 256K x 9

(4) 1M x 9

(36) 1M x 1

(36) 1M x 1

13MB

(4) 1M x 9

(4) 1M x 9

(36) 1M x 1

(36) 256K x 1

13MB

(4) 1M x 9

(4) 256K x 9

(36) 1M x 1

(36) 1M x 1

16MB

(4) 1M x 9

(4) 1M x 9

(36) 1M x 1

(36) 1M x 1

Note: Banks 2 & 3 are found on optional 32-bit external memory card.








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