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AMI 386SX-I

AMERICAN MEGATRENDS, INC.

AMI 386SX-I

Processor

80386SX

Processor Speed

16/20MHz

Chip Set

Intel

Max. Onboard DRAM

8MB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J5

Turbo LED

J14

Speaker

J10

Turbo switch

J18

Power LED & keylock

J11

Reset switch

J19

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Keyboard reset enabled

J2

Closed

 

Keyboard reset disabled

J2

Open

Factory configured - do not alter

J17

N/A

BIOS type select 2764 or 27128

J26

pins 1 & 2 closed

 

BIOS type select 27256

J26

pins 2 & 3 closed

Factory configured - do not alter

SW1/1

Off

Monitor type select monochrome

SW1/2

Off

 

Monitor type select color

SW1/2

On

 

Note : The location of J17 is unidentified.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(2) 256K x 9

NONE

NONE

NONE

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

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

8MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

DRAM SPEED CONFIGURATION

Speed

J8

J9

100ns fast page

pins 1 & 2 closed

pins 1 & 2 closed

100ns

pins 2 & 3 closed

pins 1 & 2 closed

120ns

pins 2 & 3 closed

pins 2 & 3 closed