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M400-10 (PCB BA901)

OLIVETTI

M400-10 (PCB BA901)

Processor

80486SX/80487SX/80486DX

Processor Speed

25MHz

Chip Set

Unidentified

Maximum Onboard Memory

52MB

Cache

None

BIOS

Unidentified

Dimensions

355mm x 305mm

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

4167

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

One hard drive installed

J16

Closed

 

Two hard drives installed

J16

Open

Serial port enabled

SW1/1

On

 

Serial port disabled

SW1/1

Off

Built in setup enabled

SW1/2

On

 

Built in setup disabled

SW1/2

Off

Floppy drive write enabled

SW1/3

On

 

Floppy drive write disabled

SW1/3

Off

Factory configured - do not alter

SW1/4

On

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

DRAM

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

40MB

4MB

(4) 4M x 9

(4) 1M x 9

(4) 4M 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.

CPU TYPE

Setting

J18

J19

J20

80486SX

Open

Open

Pins 2 & 3 closed

80487SX

Pins 2 & 3 closed

Closed

Pins 1 & 2 closed

80486DX

Pins 1 & 2 closed

Closed

Pins 1 & 2 closed

SERIAL PORT RING INDICATOR

Setting

J7

J8

FAIL SAFE enabled

Closed

Closed

 

FAIL SAFE disabled

Open

Open