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80486SWB-ISA

FREE COMPUTER TECHNOLOGY, INC.

80486SWB-ISA

Processor

80486SX/80486DX

Processor Speed

20/25/33MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

JP11

External battery

J11

Power LED & keylock

J20

Reset switch

SW1

Speaker

J21

Turbo switch

SW2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP2

Open

 

Monitor type select monochrome

JP2

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(4) 1M x 9

NONE

NONE

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

12MB

(4) 1M x 9

(4) 1M x 9

(1) 1M x 36

NONE

16MB

(4) 1M x 9

(4) 1M x 9

(1) 1M x 36

(1) 1M x 36

20MB

(4) 1M x 9

(4) 4M x 9

NONE

NONE

20MB

(4) 4M x 9

(4) 1M x 9

NONE

NONE

24MB

(4) 1M x 9

(4) 4M x 9

(1) 1M x 36

NONE

24MB

(4) 4M x 9

(4) 1M x 9

(1) 1M x 36

NONE

28MB

(4) 1M x 9

(4) 4M x 9

(1) 1M x 36

(1) 1M x 36

28MB

(4) 4M x 9

(4) 1M x 9

(1) 1M x 36

(1) 1M x 36

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

CACHE CONFIGURATION

Size

Bank 0

TAG

64KB

(8) 8K x 8

(1) 8K x 8

256KB

(8) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP9

JP10

JP12

64KB

Open

Open

Open

256KB

Closed

Closed

Closed

CPU TYPE CONFIGURATION

Type

JP3

JP4

JP5

80486SX

Open

Open

pins 2 & 3 closed

80487SX

pins 1 & 2 closed

Closed

pins 1 & 2 closed

80486DX

pins 2 & 3 closed

Closed

pins 1 & 2 closed