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NKC-486P

UNIDENTIFIED

NKC-486P

Processor

80486SX/80487SX/80486DX

Processor Speed

16/20/33/50MHz

Chip Set

OPTI

Max. Onboard DRAM

64MB

Cache

64/128/256/512KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

JP1

Turbo switch

JP16

Power LED & keylock

JP9

Turbo LED

JP17

Reset switch

JP12

Speaker

JP18

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Battery type select internal

JP1

pins 2 & 3 closed

 

Battery type select external

JP1

Closed

»

CMOS memory normal operation

JP2

pins 1 & 2 closed

 

CMOS memory clear

JP2

pins 2 & 3 closed

»

Monitor type select color

JP3

Closed

 

Monitor type select monochrome

JP3

Open

»

I/O bus speed select ATCLK/4

JP10

Closed

 

I/O bus speed select ATCLK/6

JP10

Open

»

CPU speed select OSC

JP11

pins 1 & 2 closed

 

CPU speed select OSC/2

JP11

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(4) 256K x 9

NONE

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

NONE

4MB

(4) 1M x 9

NONE

NONE

NONE

5MB

(4) 256K x 9

(4) 1M x 9

NONE

NONE

6MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

9MB

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

13MB

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

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

20MB

(4) 4M x 9

(4) 1M x 9

NONE

NONE

24MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

NONE

24MB

(4) 1M x 9

(4) 4M x 9

(4) 1M x 9

NONE

24MB

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

NONE

28MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

28MB

(4) 1M x 9

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

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

36MB

(4) 4M x 9

(4) 1M x 9

(4) 4M x 9

NONE

36MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

NONE

40MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

40MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

40MB

(4) 4M x 9

(4) 1M x 9

(4) 4M x 9

(4) 1M x 9

40MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

52MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

52MB

(4) 4M x 9

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

52MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

64MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(8) 8K x 8

NONE

(1) 8K x 8

128KB

(8) 8K x 8

(8) 8K x 8

(1) 8K x 8

256KB

(8) 32K x 8

NONE

(1) 32K x 8

512KB

(8) 32K x 8

(8) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP4

JP5

JP6

JP7

JP8

64KB

pins 2 & 3 closed

Open

Open

Open

Open

128KB

pins 2 & 3 closed

Closed

Closed

Open

Open

256KB

pins 2 & 3 closed

Closed

Closed

Closed

Open

512KB

pins 1 & 2 closed

Closed

Closed

Closed

Closed

CPU TYPE CONFIGURATION

Type

JP13

JP14

JP15

80486SX

Open

pins 1 & 2 closed

Open

80487SX

pins 1 & 2 closed

pins 2 & 3 closed

Closed

80486DX

pins 2 & 3 closed

pins 2 & 3 closed

Closed