SPRING CIRCLE COMPUTER, INC.

80386SX

   

Processor

80386SX

Processor Speed

25MHz

Chip Set

Intel

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

220mm x 236mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J17

Turbo switch

J24

Speaker

J21

Turbo LED

J25

Power LED & keylock

J22

Reset switch

J26

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

J16

Open

 

CMOS memory clear

J16

Closed

»

Battery select internal

J17

pins 2 & 3 closed

 

Battery select external

J17

Closed

»

Monitor type select color

J18

Closed

 

Monitor type select monochrome

J18

Open

»

Floppy drive current select low (12mA)

J19

Open

 

Floppy drive current select high (24mA)

J19

Closed

»

Pipeline mode disabled

J20

Open

 

Pipeline mode enabled

J20

Closed

»

NPU disabled

J23

pins 2 & 3 closed

 

NPU enabled

J23

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Parity (P-0)

Bank 1

Parity (P-1)

Bank 2

Bank 3

512KB

(4) 44256

(2) 41256

NONE

NONE

NONE

NONE

512KB

NONE

NONE

NONE

NONE

(2) 256K x 9

NONE

1MB

(4) 44256

(2) 41256

(4) 44256

(2) 41256

NONE

NONE

1MB

NONE

NONE

NONE

NONE

(2) 256K x 9

(2) 256K x 9

2MB

(4) 441000

(2) 411000

NONE

NONE

NONE

NONE

2MB

NONE

NONE

NONE

NONE

(2) 1M x 9

NONE

4MB

(4) 441000

(2) 411000

(4) 441000

(2) 411000

NONE

NONE

4MB

NONE

NONE

NONE

NONE

(2) 1M x 9

(2) 1M x 9

8MB

NONE

NONE

NONE

NONE

(2) 4M x 9

NONE

16MB

NONE

NONE

NONE

NONE

(2) 4M x 9

(2) 4M x 9