HwMuseum | Index

RELIALOGIC CORPORATION PRIVATE, LTD.

R386SX MBC

Processor

80386SX

Processor Speed

16/25MHz

Chip Set

C & T

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

220mm x 218mm

I/O Options

Floppy drive interface, IDE interface

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J7

Turbo LED

J11

Power LED & keylock

J8

Speaker

J12

Reset switch

J9

Floppy drive interface

P3

Turbo switch

J10

IDE interface

P4

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Floppy drive interface enabled

J2

Closed

 

Floppy drive interface disabled

J2

Open

»

IDE interface enabled

J3

Closed

 

IDE interface disabled

J3

Open

»

Factory configured - do not alter

J4

Open

»

Monitor type select CGA/EGA/VGA

J5

pins 1 & 2 closed

 

Monitor type select monochrome

J5

pins 2 & 3 closed

»

Battery type select internal

J6

Closed

 

Battery type select external

J6

Open

DRAM CONFIGURATION (DIPP & SIMM RAM)

Size

Bank 0

Bank 1

Parity Chip

Bank 2

Bank 3

512KB

(2) 44256

(2) 44256

(2) 41256

NONE

NONE

1MB

(4) 44256

(4) 44256

(4) 41256

NONE

NONE

1.5MB

(4) 44256

(4) 44256

(4) 41256

(2) 256K x 9

NONE

2MB

(4) 44256

(4) 44256

(4) 41256

(2) 256K x 9

(2) 256K x 9

2MB

NONE

NONE

NONE

(2) 1M x 9

NONE

3MB

(4) 44256

(4) 44256

(4) 41256

(2) 1M x 9

(2) 256K x 9

4MB

NONE

NONE

NONE

(2) 1M x 9

(2) 1M x 9

5MB

(4) 44256

(4) 44256

(4) 41256

(2) 1M x 9

(2) 1M x 9

9MB

(4) 44256

(4) 44256

(4) 41256

(2) 4M x 9

NONE

16MB

NONE

NONE

NONE

(2) 4M x 9

(2) 4M x 9

Note: When installing 512KB, only U32, U33, U37, U38,U41 & U42 are used.

DRAM JUMPER CONFIGURATION

Bank 0

Bank 1

Parity Chip

Bank 2

Bank 3

J13, J14 & J15

(2) 44256

(2) 44256

(2) 41256

NONE

NONE

1 & 2, 3 & 4, 5 & 6, 7 & 8

(4) 44256

(4) 44256

(4) 41256

NONE

NONE

1 & 2, 3 & 4, 5 & 6, 7 & 8

(4) 44256

(4) 44256

(4) 41256

(2) 256K x 9

NONE

1 & 2, 3 & 4, 5 & 6, 7 & 8

(4) 44256

(4) 44256

(4) 41256

(2) 256K x 9

(2) 256K x 9

1 & 2, 3 & 4, 5 & 6, 7 & 8

NONE

NONE

NONE

(2) 1M x 9

NONE

1 & 3, 2 & 4, 5 & 7, 6 & 8

(4) 44256

(4) 44256

(4) 41256

(2) 1M x 9

(2) 256K x 9

1 & 2, 3 & 4, 5 & 6, 7 & 8

NONE

NONE

NONE

(2) 1M x 9

(2) 1M x 9

1 & 3, 2 & 4, 5 & 7, 6 & 8

(4) 44256

(4) 44256

(4) 41256

(2) 1M x 9

(2) 1M x 9

1 & 2, 3 & 4, 5 & 6, 7 & 8

(4) 44256

(4) 44256

(4) 41256

(2) 4M x 9

NONE

1 & 2, 3 & 4, 5 & 6, 7 & 8

NONE

NONE

NONE

(2) 4M x 9

(2) 4M x 9

1 & 3, 2 & 4, 5 & 7, 6 & 8

Note:Pins designated should be in the closed position.