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M286/25

OLIVETTI

M286/25

Processor

80386DX

Processor Speed

25MHz

Chip Set

C & T

Max. Onboard DRAM

10MB

Cache

32KB

BIOS

Olivetti

Dimensions

355mm x 304mm

I/O Options

32-bit external memory card

NPU Options

80387DX/3167

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

IDE interface

CN5

Parallel port

CN2

Floppy drive interface

CN6

Serial port

CN3

32-bit external memory card

S1

Video port

CN4

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Normal operation

J11, J12

Closed

 

Indicates the level from the RS232 threshold

J11, J12

Open

Factory configured - do not alter

J14

Closed

CMOS memory normal operation

J27

Open

 

CMOS memory clear

J27

Open

Cache controller select 82385

J28

Open

 

Cache controller select other

J28

Closed

NPU synchronous with CPU

J30

Open

 

NPU asynchronous

J30

Closed

BIOS enabled

J32

Open

 

BIOS disabled

J32

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

2MB

(8) 44256

None

None

3MB

(8) 44256

(4) 256K x 9

None

4MB

(8) 44256

(4) 256K x 9

(4) 256K x 9

6MB

(8) 44256

(4) 1M x 9

None

10MB

(8) 44256

(4) 1M x 9

(4) 1M x 9