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M400-60 (BA334)

OLIVETTI

M400-60 (BA334)

Processor

80486SX/80487SX/80486DX2

Processor Speed

25/33/50(internal)/66(internal)MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

52MB

Maximum Video Memory

Unidentified

Cache

None

BIOS

Unidentified

Dimensions

355mm x 304mm

I/O Options

Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port, feature connector, VGA port, riser slot, console connector

NPU Options

None

CONNECTIONS

Function

Label

Function

Label

PS/2 mouse port

CN1

IDE interface

CN6

Parallel port

CN2

Floppy drive interface

CN7

Serial port

CN3

Console connector

CN8

VGA port

CN4

Riser slot

SL1

Feature connector

CN5

   

USER CONFIGURABLE SETTINGS

Setting

Label

Position

ROM BIOS enabled

J11

Closed

 

ROM BIOS disabled

J11

Open

Floppy drive oscillator enabled

J13

Closed

 

Floppy drive oscillator disabled

J13

Open

CMOS memory normal operation

J15

Open

 

CMOS memory clear

J15

Closed

Hard drives installed 1

J16

Closed

 

Hard drives installed 2

J16

Open

Serial port enabled

SW1/1

On

 

Serial port disabled

SW1/1

Off

Factory configured - do not alter

SW1/2

On

Floppy drive write protect disabled

SW1/3

On

 

Floppy drive write protect enabled

SW1/3

Off

Factory configured - do not alter

SW1/4

N/A

Note: The location of pin 1 on SW1 is unidentified.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

4MB

None

None

None

8MB

4MB

(4) 1M x 9

None

None

12MB

4MB

(4) 1M x 9

(4) 1M x 9

None

16MB

4MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

20MB

4MB

(4) 4M x 9

None

None

24MB

4MB

(4) 1M x 9

(4) 4M x 9

None

36MB

4MB

(4) 4M x 9

(4) 4M x 9

None

40MB

4MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

40MB

4MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

52MB

4MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

Note: Bank 0 is factory installed and is not configurable.

VIDEO MEMORY CONFIGURATION

Note: The size and chip type of the video memory is unidentified.

CPU TYPE SELECTION

Setting

J18

J19

J20

80486SX

Open

Open

Pins 2 & 3 closed

80487SX

Pins 2 & 3 closed

Closed

Pins 1 & 2 closed

80486DX2

Pins 1 & 2 closed

Closed

Pins 1 & 2 closed

CPU SPEED SELECTION

Speed

J21

25MHz

Pins 2 & 3 closed

33MHz

Pins 1 & 2 closed

50iMHz

Pins 2 & 3 closed

66iMHz

Pins 1 & 2 closed

RING INDICATOR/INPUT SIGNAL CONFIGURATION

Setting

J7

J8

 

FAIL SAFE enabled

Closed

Closed

FAIL SAFE disabled

Open

Open