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





OPTI 80386 SYSTEM BOARD

UNIDENTIFIED

OPTI 80386 SYSTEM BOARD

Processor

80386DX

Processor Speed

25/33MHz

Chip Set

Unidentified

Max. Onboard DRAM

16MB

Cache

32/64KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387SX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

J14

Power LED & keylock

J18

Reset switch

J16

Speaker

J19

Turbo switch

J17

Riser Card

S1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

J2

Closed

 

Monitor type select monochrome

J2

Open

Battery type select internal

J5

pins 2 & 3 closed

 

Battery type select external

J5

pins 1 & 4 closed

Weitek 3167 installed

J6

Closed

 

Weitek 3167 not installed

J6

Open

Cache type select pipeline

J7

pins 2 & 3 closed

 

Cache type select non-pipeline

J7

pins 1 & 2 closed

NPU enabled

J8

pins 1 & 2 closed

 

NPU disabled

J8

pins 2 & 3 closed

Factory configured - do not alter

J10

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

3MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

NONE

4MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

NONE

NONE

5MB

(4) 256K x 9

(4) 1M x 9

NONE

NONE

5MB

(4) 1M x 9

(4) 256K x 9

NONE

NONE

6MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

NONE

6MB

(4) 256K x 9

(4) 1M x 9

(4) 256K x 9

NONE

6MB

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

NONE

7MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 256K x 9

7MB

(4) 256K x 9

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

7MB

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

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

9MB

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

NONE

9MB

(4) 1M x 9

(4) 256K x 9

(4) 1M x 9

NONE

10MB

(4) 256K x 9

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

10MB

(4) 256K x 9

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

10MB

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

(4) 256K x 9

10MB

(4) 1M x 9

(4) 256K x 9

(4) 1M x 9

(4) 256K 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

13MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 256K x 9

13MB

(4) 1M x 9

(4) 256K 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

Note: Bank 2 and Bank 3 are on the riser card.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG0

TAG1

32KB

(4) 8K x 8

NONE

(3) 8K x 8

NONE

64KB

(4) 8K x 8

(4) 8K x 8

(3) 8K x 8

(1) 8K x 8

EXTERNAL MEMORY CARD CONFIGURATION

Select

J15

32KB installed

pins 1 & 2 closed

64KB installed

pins 2 & 3 closed

Not installed

Open

CACHE SIZE CONFIGURATION

Size

J9

J13

32KB

pins 1 & 2 closed

pins 1 & 2 closed

64KB

pins 2 & 3 closed

pins 2 & 3 closed

CLOCK SELECT CONFIGURATION

Select

J3

J4

External

pins 1 & 2 closed

pins 1 & 2 closed

Internal

pins 2 & 3 closed

pins 2 & 3 closed