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FOREX 386/486

MICRO EXPRESS, INC.

FOREX 386/486

Processor

80386DX/CX486DLC/80486SX/80487SX/80486DX/80486DX2

Processor Speed

20/25/33/40/50(internal)/66(internal)MHz

Chip Set

Forex

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP2

Turbo switch

JP15

Reset switch

JP8

Turbo LED

JP16

Power LED & keylock

JP14

Speaker

JP17

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Ľ

Parity check enabled

JP5

Closed

 

Parity check disabled

JP5

Open

 

Monitor type select color

JP6

Open

 

Monitor type select monochrome

JP6

Closed

Ľ

Factory configured - do not alter

JP19

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

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U26)

TAG (U42)

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

NONE

128KB

(4) 32K x 8

NONE

(1) 8K x 8

NONE

256KB

(4) 32K x 8

(4) 32K x 8

(1) 8K x 8

(1) 8K x 8

CACHE JUMPER CONFIGURATION

Size

JP8A

JP8B

JP8C

JP8D

JP8E

JP8F

64KB

2 & 3

2 & 3

1 & 2

2 & 3

2 & 3

1 & 2

128KB

1 & 2

2 & 3

1 & 2

1 & 2

1 & 2

1 & 2

256KB

2 & 3

1 & 2

2 & 3

2 & 3

1 & 2

2 & 3

Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

W1 & W2

80386DX

2 & 3, 5 & 6, 8 & 9,11 & 12, 14 & 15, 17 & 18, and 20 & 21

80486DLC

1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17, and 19 & 20

80486SX

1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17, and 19 & 20

80487SX

1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17, and 19 & 20

80486DX

1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17, and 19 & 20

80486DX2

1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17, and 19 & 20

Notes:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONíT)

Type

JP12

JP13

JP30

80386DX

N/A

N/A

N/A

80486DLC

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486SX

pins 2 & 3 closed

pins 2 & 3 closed

N/A

80487SX

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

80486DX

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX2

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed