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351 386DX/486DLC

UNIDENTIFIED

351 386DX/486DLC

Processor

80386DX/CX486DLC

Processor Speed

25/33/40MHz

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

MR BIOS

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387DX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP1

Turbo LED

JP12

Reset switch

JP9

Speaker

JP14

Turbo switch

JP10

Keylock & power LED

JP15

USER CONFIGURABLE SETTINGS

 

Function

Jumper

Position

 

Monitor type select color

JP13

Closed

 

Monitor type select monochrome

JP13

Open

Coprocessor not installed

JP18 & JP19

Open

 

Coprocessor installed

JP18 & JP19

Closed

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 1

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP4

JP5

JP6

JP7

JP8

64KB

pins 1 & 2

pins 2 & 3

Open

Open

Open

128KB

pins 2 & 3

pins 1 & 2

pins 1 & 2

Open

Closed

256KB

pins 1 & 2

pins 1 & 2

pins 2 & 3

Closed

Closed

Note: Pins designated should be in the closed position.

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

32MB

(4) 4M x 9

(4) 4M x 9