HwMuseum | Index

UNIDENTIFIED

386H

Processor

80386DX/CX486DLC

Processor Speed

25/33/40MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

80387DX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo switch

JP11

Power LED & keylock

J18

Turbo LED

JP12

Speaker

J19

Reset switch

SW1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

JP3

pins 2 & 3 closed

 

CMOS memory clear

JP3

pins 1 & 2 closed

 

Monitor type select color

JP4

Closed

 

Monitor type select monochrome

JP4

Open

»

Factory configured - do not alter

JP8

N/A

»

Factory configured - do not alter

JP9

N/A

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

5MB

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

Note: The location of TAG is unidentified.

CACHE JUMPER CONFIGURATION

Size

JP6

JP10

JP17

JP18

64KB

Open

pins 2 & 3 closed

Open

Open

128KB

Closed

pins 1 & 2 closed

Open

Closed

256KB

Closed

pins 2 & 3 closed

Closed

Closed

CPU TYPE CONFIGURATION

Type

JP5

JP20

80386DX

Open

Open

CX486DLC

Closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

JP2

JP14

JP15

JP16

25MHz

N/A

Closed

Open

Closed

33MHz

Closed

Open

Closed

Closed

40MHz

Open

Closed

Open

Open