IBM CORPORATION

APTIVA M30 (250-0441), APTIVA M31 (250-0441), APTIVA M40 (12-10609), APTIVA M41 (250-0442), APTIVA M50 (250-0440), APTIVA M53 (250-0443), APTIVA M71 (250-0444)

Processor

CX M1/Pentium

Processor Speed

75/100/133MHz

Chip Set

VLSI

Video Chip Set

Trident

Maximum Onboard Memory

128MB (EDO supported)

Maximum Video Memory

2MB

Cache

256/512KB

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VESA feature connector, VGA port, riser slot, cache slots (2), internal VGA connector, power switch connector, wake up on ring connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN2

Internal VGA connector

J11

Serial port 2

CN3

Power switch connector

J16

Serial port 1

CN4

IDE interface LED

J17

Parallel port

CN5

VESA feature connector

J18

VGA port

CN6

Speaker

JP1

Floppy drive interface

CN7

Chassis fan power

JP2

IDE interface 2

CN8

Riser slot

SL1

IDE interface 1

CN9

Cache slots

SL2 & SL3

Wake up on ring connector

J1

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

JP2

Unidentified

»

CMOS memory normal operation

JP12

Pins 1 & 2 closed

 

CMOS memory clear

JP12

Pins 2 & 3 closed

 

Floppy drive write enabled

JP22

Pins 1 & 2 closed

 

Floppy drive write disabled

JP22

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 1M x 36

(2) 2M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 1M x 36

(2) 4M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 1M x 36

(2) 8M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 4M x 36

(2) 8M x 36

128MB

(2) 8M x 36

(2) 8M x 36

Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. Banks are interchangeable.

CACHE CONFIGURATION

Size

SL2

SL3

TAG

256KB

256KB module installed

Not installed

(1) 32K x 8

512KB

256KB module installed

256KB module installed

(1) 32K x 8

Note: The location of the TAG is unidentified.

CACHE JUMPER CONFIGURATION

Size

JP6

None

Pins 1 & 3, 2 & 4 closed

256KB

Pins 1 & 3, 2 & 4 closed

512KB

Pins 3 & 5, 4 & 6 closed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

1MB

1MB

None

2MB

1MB

1MB

Note: The location of bank 0 is unidentified. The size of the memory chips are unidentified.

CPU SPEED SELECTION

CPU

Speed

JP23

CX M1

3/1

Pins 4 & 6 closed

CX M1

2/1

Pins 2 & 4 closed

P54

3/2

Open

P54

2/1

Pins 2 & 4 closed

P54C

-

Pins 1 & 3 closed

P55C

-

Pins 3 & 5 closed

ASM M1

-

Open

CPU MULTIPLIER SELECTION

Multiplier

JP25

2x

Pins 1 & 2 closed

2.5x

Pins 2 & 3 closed

CPU TYPE SELECTION

Type

JP9

CX M1

Pins 2 & 3 closed

P54C

Pins 1 & 2 closed

P55C

N/A

CPU VOLTAGE SELECTION

Voltage

JP21

3.3v

Pins 2 & 3 closed

5v

Pins 1 & 2 closed