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R386SX MBC

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.