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386SX

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.