EISA TECH CORPORATION

386SX

Processor

80386SX

Processor Speed

16/20MHz

Chip Set

VLSI

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J16

External battery

J21

Turbo switch

J19

Speaker

J22

Turbo LED

J20

Power LED & keylock

J23

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Battery select internal

JP2

pins 1 & 2 closed

 

Battery select external

JP2

pins 2 & 3 closed

»

Pipeline mode enabled

JP3

Closed

 

Pipeline mode disabled

JP3

Open

»

CMOS memory normal operation

JP4

pins 1 & 2 closed

 

CMOS memory clear

JP4

pins 2 & 3 closed

»

CPU ready signal select from 82C320

JP6

pins 1 & 2 closed

 

CPU ready signal select from NPX

JP6

pins 2 & 3 closed

»

Monitor type select monochrome

JP7

Open

 

Monitor type select color

JP7

Closed

»

Maximum bus amperage select 24mA

JP8

Closed

 

Maximum bus amperage select 12mA

JP8

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(18) 41256

NONE

NONE

NONE

512KB

NONE

NONE

(2) 256K x 9

NONE

1MB

(18) 41256

(18) 41256

NONE

NONE

1MB

NONE

NONE

(2) 256K x 9

(2) 256K x 9

1.5MB

(18) 41256

(18) 41256

(2) 256K x 9

NONE

2MB

(18) 41256

(18) 41256

(2) 256K x 9

(2) 256K x 9

2MB

(18) 411000

NONE

NONE

NONE

3MB

(18) 41256

(18) 41256

(2) 1M x 9

NONE

4MB

(18) 411000

(18) 411000

NONE

NONE

4.5MB

(18) 411000

(18) 411000

(2) 256K x 9

NONE

5MB

(18) 411000

(18) 411000

(2) 256K x 9

(2) 256K x 9

5MB

(18) 41256

(18) 41256

(2) 1M x 9

(2) 1M x 9

6MB

(18) 411000

(18) 411000

(2) 1M x 9

NONE

8MB

(18) 411000

(18) 411000

(2) 1M x 9

(2) 1M x 9

8MB

(18) 414000

NONE

NONE

NONE

8MB

NONE

NONE

(2) 4M x 9

NONE

9MB

(18) 414000

(18) 41256

(2) 4M x 9

NONE

12MB

(18) 411000

(18) 411000

(2) 4M x 9

NONE

16MB

(18) 414000

(18) 414000

NONE

NONE

16MB

NONE

NONE

(2) 4M x 9

(2) 4M x 9

DRAM JUMPER CONFIGURATION

Size

JP5

512KB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

512KB

pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15, 17 & 18 closed

1MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

1MB

pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15, 17 & 18 closed

1.5MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

2MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

2MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

3MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

4MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

4.5MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

5MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

5MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

6MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

8MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

8MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

8MB

pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15, 17 & 18 closed

9MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

12MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

16MB

pins 1 & 2, 4 & 5, 7 & 8, 10 & 11, 13 & 14, 16 & 17 closed

16MB

pins 2 & 3, 5 & 6, 8 & 9, 11 & 12, 14 & 15, 17 & 18 closed

Note:Each line in this table corresponds to same line in the above DRAM configuration table.