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386DX-33/40

UNIDENTIFIED

386DX-33/40

Processor

80386DX/CX486DLC

Processor Speed

25/33/40MHz

Chip Set

OPTI

Video Chip Set

None

Maximum Onboard Memory

32MB

Maximum Video Memory

None

Cache

Unidentified

BIOS

AMI

Dimensions

220mm x 170mm

I/O Options

None

NPU Options

80387DX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J2

Turbo switch

JP5

Power LED & keylock

J16

Turbo LED

JP6

Speaker

JP4

Reset switch

S1

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

JP1

Pins 2 & 3 closed

 

CMOS memory clear

JP1

Pins 1 & 2 closed

 

Monitor type select color

JP2

Closed

 

Monitor type select monochrome

JP2

Open

Factory configured - do not alter

JP10

Unidentified

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

5MB

(4) 1M x 9

(4) 256K 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

Note: The size of the cache unidentified.

CPU SPEED SELECTION

Speed

JP7

JP8

JP9

25MHz

Open

Open

Closed

33MHz

Open

Closed

Open

40MHz

Closed

Closed

Open