UNIDENTIFIED

KMC-OPTI291

Processor

80386SX/CX486SLC

Processor Speed

16/20/25/33/40MHz

Chip Set

OPTI

Max. Onboard DRAM

16MB

SRAM Cache

16/64KB

BIOS

AMI

Dimensions

220mm x 220mm

I/O Options

None

NPU Options

80387SX/CX83S87

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo LED

JP4

Power LED & keylock

J18

Reset switch

SW1

Speaker

J19

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

closed

 

Monitor type select monochrome

JP2

open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(2) 256K x 9

(2) 256K x 9

NONE

NONE

2MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

NONE

NONE

3MB

(2) 256K x 9

(2) 256K x 9

(2) 1M x 9

NONE

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

5MB

(2) 256K x 9

(2) 256K x 9

(2) 1M x 9

(2) 1M x 9

6MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

NONE

8MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

8MB

(2) 4M x 9

NONE

NONE

NONE

9MB

(2) 256K x 9

(2) 256K x 9

(2) 4M x 9

NONE

10MB

(2) 1M x 9

(2) 4M x 9

NONE

NONE

12MB

(2) 1M x 9

(2) 1M x 9

(2) 4M x 9

NONE

16MB

(2) 4M x 9

(2) 4M x 9

NONE

NONE

SRAM CONFIGURATION

Size

Cache SRAM

TAG

16KB

(2) 8K x 8

(1) 8K x 8

64KB

(2) 32K x 8

(1) 8K x 8

SRAM JUMPER CONFIGURATION

Size

JP5

JP6

16KB

open

open

64KB

closed

closed