...because we can't all be on the bleeding edge...





KW-420B

KOUWELL ELECTRONIC CORPORATION

KW-420B

Processor

80486DX

Processor Speed

33MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

32/64/128/256KB

BIOS

AMI

Dimensions

331mm x 218mm

I/O Options

32-bit external memory card slot

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J10

32-bit external memory card

S1

Power LED & keylock

J23

Reset switch

SW1

Speaker

J24

Turbo switch

SW2

Turbo LED

JP12

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select monochrome

JP1

Open

 

Monitor type select color

JP1

Closed

CMOS memory normal operation (internal battery)

JP2

pins 2 & 3 closed

 

CMOS memory clear

JP2

pins 1 & 2 closed

 

CMOS memory normal operation (external battery)

JP2

Open

Bus speed select ATCLK/4

JP3

Open

 

Bus speed select ATCLK/6

JP3

Closed

Factory configured - do not alter

JP4

N/A

Factory configured - do not alter

JP5

N/A

Factory configured - do not alter

JP6

N/A

Factory configured - do not alter

JP7

N/A

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

(4) 1M x 9

NONE

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

NONE

NONE

20MB

(4) 1M x 9

(4) 4M x 9

NONE

NONE

24MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

NONE

28MB

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

36MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

NONE

40MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

52MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

64MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

Note:Banks 2 and 3 are used when 32-bit external memory card is installed at S1.

CACHE CONFIGURATION

Size

Bank 0

TAG (U34)

Dirty Bit (U33)

64KB

(8) 8K x 8

(1) 8K x 8

(1) 64K x 1

256KB

(8) 32K x 8

(1) 32K x 8

(1) 64K x 1

CACHE JUMPER CONFIGURATION

Size

JP8

JP9

JP10

JP11

64KB

Open

Open

Open

Open

256KB

Closed

Closed

Open

Closed