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386SX-20

ZEOS INTERNATIONAL, LTD.

386SX-20

Processor

80386SX

Processor Speed

20MHz

Chip Set

Unidentified

Max. Onboard DRAM

16MB

Cache

None

BIOS

Award

Dimensions

330mm x 218mm

I/O Options

serial ports (2), parallel port, floppy drive interface, IDE interface, game port

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo switch

J10

Game port

J3

Reset switch

J11

Parallel port

J5

Turbo LED

J12

Serial port 2

J6

Power LED & keylock

J13

Serial port 1

J7

Speaker

J14

Floppy drive interface

J8

IDE interface LED

J15

IDE interface

J9

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select CGA

J4

Closed

 

Monitor type select Mono/EGA/VGA

J4

Open

Game port enabled

P1

Closed

 

Game port disabled

P1

Open

Parallel port interupt select IRQ7

PIRQ

pins 1 & 2 closed

 

Parallel port interupt select IRQ5

PIRQ

pins 2 & 3 closed

 

Parallel port interupt disabled

PIRQ

all open

Serial port 1 (COM1) interupt select IRQ4

SIRQ1

pins 2 & 3 closed

 

Serial port 1 (COM1) interupt select IRQ3

SIRQ1

pins 1 & 2 closed

 

Serial port 1 (COM1) interupt disabled

SIRQ1

all open

Serial port 2 (COM2) interupt select IRQ3

SIRQ2

pins 1 & 2 closed

 

Serial port 2 (COM2) interupt select IRQ4

SIRQ2

pins 2 & 3 closed

 

Serial port 2 (COM2) interupt disabled

SIRQ2

all open

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

1.5MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

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) 1M x 9

(2) 256K x 9

(2) 256K x 9

NONE

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

5MB

(2) 1M x 9

(2) 1M x 9

(2) 256K x 9

(2) 256K 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) 4M x 9

(2) 256K x 9

(2) 256K x 9

NONE

10MB

(2) 4M x 9

(2) 1M x 9

NONE

NONE

11MB

(2) 4M x 9

(2) 1M x 9

(2) 256K x 9

(2) 256K x 9

12MB

(2) 4M x 9

(2) 1M x 9

(2) 1M x 9

NONE

14MB

(2) 4M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

16MB

(2) 4M x 9

(2) 4M x 9

NONE

NONE