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M480-20 (BA371)

OLIVETTI

M480-20 (BA371)

Processor

80486SX

Processor Speed

33MHz

Chip Set

Topcat

Video Chip Set

Unidentified

Maximum Onboard Memory

36MB (16MB on external memory card)

Maximum Video Memory

1MB

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Floppy drive interfaces (2), SCSI/IDE interface, parallel port, PS/2 mouse port, serial port, riser slot, feature connector

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Feature connector

CN1

Floppy drive interface 3

CN6

VGA port

CN2

PS/2 mouse port

CN7

Parallel port

CN3

SCSI/IDE interface

CN8

Serial port

CN4

Riser slot

SL1

Floppy drive interface 1/2

CN5

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Third floppy drive interface enabled

P1

Pins 1 & 2 closed

 

Third floppy drive interface disabled

P1

Pins 2 & 3 closed

Password enabled

P2

Pins 2 & 3 closed

 

Password disabled

P2

Pins 1 & 2 closed

Parallel port unidirectional

P3

Pins 1 & 2 closed

 

Parallel port bidirectional

P3

Pins 2 & 3 closed

Interlaced video enabled

P4

Pins 2 & 3 closed

 

Interlaced video disabled

P4

Pins 1 & 2 closed

Mainboard current control maximum current

P5

Pins 1 & 2 closed

 

Mainboard current control minimum current

P5

Pins 2 & 3 closed

Hard drive wait state select 1 wait state

P7

Pins 1 & 2 closed

 

Hard drive wait state select 0 wait states

P7

Pins 2 & 3 closed

On board battery enabled

P8

Pins 2 & 3 closed

 

On board battery disabled

P8

Pins 1 & 2 closed

Parity check enabled

P9

Pins 1 & 2 closed

 

Parity check disabled

P9

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

4MB

4MB

None

None

8MB

4MB

(4) 1M x 9

None

12MB

4MB

(4) 1M x 9

(4) 1M x 9

20MB

4MB

(4) 4M x 9

None

36MB

4MB

(4) 4M x 9

(4) 4M x 9

Note: Bank 0 is factory installed and is not configurable. Bank 2 is located on the memory card.

VIDEO MEMORY CONFIGURATION

Note: 1MB is factory installed and is not configurable.