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R386DX33 MBC

RELIALOGIC CORPORATION PRIVATE, LTD.

R386DX33 MBC

Processor

80386DX

Processor Speed

33/40MHz

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

32/64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387DX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Speaker

J4

Turbo switch

J2

Reset switch

J5

Turbo LED

J3

External battery

J6

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Tag ram not installed in U3

W2

Open

 

Tag ram installed in U3

W2

Closed

Monitor type select CGA

W11

Closed

 

Monitor type select monochrome/EGA/VGA

W11

Open

Battery type select internal

W13

Closed

 

Battery type select external

W13

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

5MB

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U4 & U5)

32KB

(4) 8K x 8

NONE

(2) 16K x 4

64KB

(4) 8K x 8

(4) 8K x 8

(2) 16K x 4

128KB

(4) 32K x 8

NONE

(2) 16K x 4

256KB

(4) 32K x 8

(4) 32K x 8

(2) 16K x 4

OPTIONAL TAG CONFIGURATION

CPU speed

(U3)

(U6)

33MHz

(1) 16K x 4

(1) 16K x 4

40MHz

(1) 16K x 6

(1) 16K x 6

Note: U3 is used only when more than 16M of memory is installed. U6 is optional and when installed, supports write-back cache.

CACHE JUMPER CONFIGURATION

Size

W3

W4

W5

W6

W7

32KB

1 & 2

1 & 2

1 & 2

2 & 3

N/A

64KB

2 & 3

1 & 2

1 & 2

1 & 2

N/A

128KB

2 & 3

2 & 3

1 & 2

2 & 3

1 & 2

256KB

2 & 3

2 & 3

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position.

MATH COPROCESSOR CONFIGURATION (80387)

CPU Type

W1

W8

W9

W10

Not installed

Open

N/A

N/A

Open

 

Synchronous mode

Closed

pins 1 & 2 closed

Open

Closed

 

Asynchronous mode

Closed

pins 2 & 3 closed

Closed

Closed

Note: For 3167 installation, use default settings and configure in advanced BIOS setup.