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SD820

SAMSUNG ELECTRONICS AMERICA, INC.

SD820

Processor

80386SX

Processor Speed

25MHz

Chip Set

Unidentified

Max. Onboard DRAM

8MB

Cache

64KB

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

32-bit external memory slots (2)

NPU Options

80387SX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

J1

Reset switch

J24

Serial port 2

J2

Speaker

J25

Parallel port

J4

Front panel connector

J26

Serial port header

J5

32-bit external memory card slots

SL1 & SL2

Serial port header

J6

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Printer acknowledge type select trailing edge

J7

pins 2 & 3 closed

 

Printer acknowledge type select leading edge

J7

pins 1 & 2 closed

Parallel printer port enabled (LPT 1)

J8

pins 1 & 2 closed

 

Parallel printer port disabled (LPT 1)

J8

pins 2 & 3 closed

Parallel printer port disabled (LPT 2)

J9

pins 2 & 3 closed

 

Parallel printer port enabled (LPT 2)

J9

pins 1 & 2 closed

Serial port enabled (COM 1 & COM 2)

J10 & J11

pins 1 & 2 closed

 

Serial port disabled (COM 1 & COM 2)

J10 & J11

pins 2 & 3 closed

Monitor type select color

J12

pins 2 & 3 closed

 

Monitor type select monochrome

J12

pins 1 & 2 closed

Factory configured - do not alter

J13

Open

ROM size select 64K

J14

pins 1 & 2 closed

 

ROM size select 128K

J14

pins 2 & 3 closed

Factory configured - do not alter

J15

Open

DRAM speed select 100 ns

J22

pins 1 & 2 closed

 

DRAM speed select 85 ns

J22

pins 2 & 3 closed

Factory configured - do not alter

J23

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

8MB

(4) 1M x 9

(4) 1M x 9

DRAM JUMPER CONFIGURATION

Size

J16

J17

J18

J19

1MB

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

2MB

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

4MB

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

8MB

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

DRAM TYPE CONFIGURATION

Type

J20

J21

Static column

pins 2 & 3 closed

pins 1 & 2 closed

Fast page mode

pins 2 & 3 closed

pins 2 & 3 closed

Standard RAS/CAS

pins 1 & 2 closed

pins 1 & 2 closed