NOVACOR, INC.

OPTimum 486WB-25/33/40/50

Processor

80486SX/80487SX/80486DX

Processor Speed

25/33/40/50MHz

Chip Set

OPTI

Max. Onboard DRAM

64MB

Cache

64/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J11

Turbo LED

JP11

Power LED & keylock

J20

Reset switch

SW1

Speaker

J21

Turbo switch

SW2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

JP1

pins 2 & 3 closed

 

CMOS memory clear

JP1

pins 1 & 2 closed

»

Monitor type select color

JP2

Open

 

Monitor type select monochrome

JP2

Closed

»

ATCLK select iOSC/6

JP6

Closed

 

ATCLK select iOSC/4

JP6

Open

 

CPU speed select 25/33MHz

JP7

pins 2 & 3 closed

 

CPU speed select 40/50MHz

JP7

pins 1 & 2 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

(1) 1M x 36

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

9MB

(4) 256K x 9

(4) 1M x 9

(1) 1M x 36

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(1) 1M x 36

(1) 1M x 36

12MB

(4) 1M x 9

(4) 1M x 9

(1) 1M x 36

NONE

13MB

(4) 256K x 9

(4) 1M x 9

(1) 1M x 36

(1) 1M x 36

16MB

(4) 1M x 9

(4) 1M x 9

(1) 1M x 36

(1) 1M x 36

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

(1) 4M x 36

NONE

24MB

(4) 1M x 9

(4) 4M x 9

(1) 1M x 36

NONE

28MB

(4) 4M x 9

(4) 1M x 9

(1) 1M x 36

(1) 1M x 36

28MB

(4) 1M x 9

(4) 1M x 9

(1) 4M x 36

(1) 1M x 36

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

36MB

(4) 4M x 9

(4) 4M x 9

(1) 1M x 36

NONE

36MB

(4) 4M x 9

(4) 1M x 9

(1) 4M x 36

NONE

40MB

(4) 1M x 9

(4) 1M x 9

(1) 4M x 36

(1) 4M x 36

40MB

(4) 4M x 9

(4) 4M x 9

(1) 1M x 36

(1) 1M x 36

40MB

(4) 1M x 9

(4) 4M x 9

(1) 4M x 36

(1) 1M x 36

48MB

(4) 4M x 9

(4) 4M x 9

(1) 4M x 36

NONE

52MB

(4) 4M x 9

(4) 4M x 9

(1) 4M x 36

(1) 1M x 36

52MB

(4) 4M x 9

(4) 4M x 9

(1) 4M x 36

(1) 1M x 36

52MB

(4) 1M x 9

(4) 4M x 9

(1) 4M x 36

(1) 4M x 36

64MB

(4) 4M x 9

(4) 4M x 9

(1) 4M x 36

(1) 4M x 36

CACHE JUMPER CONFIGURATION

Size

JP3

JP4

JP5

80486DX

pins 2 & 3 closed

closed

pins 1 & 2 closed

80487SX

pins 1 & 2 closed

closed

pins 1 & 2 closed

80486SX

open

open

pins 2 & 3 closed

CACHE JUMPER CONFIGURATION

Size

JP8

JP9

JP10

JP12

64KB

open

open

open

open

256KB

open

closed

closed

closed

CACHE CONFIGURATION

Size

Bank 0

TAG

64KB

(8) 8K x 8

(1) 8K x 8

256KB

(8) 32K x 8

(1) 32K x 8