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386SX-16

ZEOS INTERNATIONAL, LTD.

386SX-16

Processor

80386SX

Processor Speed

16MHz

Chip Set

Unidentified

Max. Onboard DRAM

4MB

Cache

None

BIOS

Award

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J2

Turbo LED

J30

Turbo switch

J28

Power LED & keylock

J31

Reset switch

J29

Speaker

J38

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Parity checking enabled

J13

pins 1 & 2 closed

 

Parity checking disabled

J13

pins 2 & 3 closed

Factory configured - do not alter

J20

N/A

BIOS type select 27256

J21

Closed

 

BIOS type select 27128

J21

Open

ROM wait state select 3 wait states

J22

Open

 

ROM wait state select 2 wait states

J22

Closed

RAM read wait state select 1 wait state

J23

Open

 

RAM read wait state select 0 wait state

J23

Closed

RAM write wait state select 1 wait state

J25

Open

 

RAM write wait state select 0 wait state

J25

Closed

Turbo switch select jumper

J32

pins 1 & 2 closed

 

Turbo switch select keyboard

J32

pins 2 & 3 closed

ROM to RAM mapping disabled

J33

Closed

 

ROM to RAM mapping enabled

J33

Open

Monitor type select CGA

J37

Closed

 

Monitor type select Mono/EGA/VGA

J37

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

512KB

(18) 41256

NONE

1MB

(18) 41256

(18) 41256

2MB

(18) 411000

NONE

4MB

(18) 411000

(18) 411000

DRAM JUMPER CONFIGURATION

Size

J34

J35

J36

512KB

Closed

Closed

Open

1MB

Closed

Open

Closed

2MB

Open

Closed

Open

4MB

Open

Open

Closed

PAGEMODE CONFIGURATION

Function

Jumper

Position

Interleave disabled

J24

Open

 

Interleave enabled (requires both memory banks full)

J24

Closed

Pagemode disabled

J26

Open

 

Pagemode enabled

J26

Closed

Pagemode controller installed

J27

Open

 

Pagemode controller not installed

J27

Closed

Note: J23 & J25 must be open to operate in pagemode.