IBM CORPORATION

APTIVA 2144 TYPE C-1, APTIVA 2168 TYPE C-1

Device Type

Mainboard

Processor

80486SX/80486SX2/80487SX/ODP486/80486DX/80486DX2

Processor Speed

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

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

64MB

Maximum Video Memory

1MB

Cache

None

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

J2

VGA feature connector

J14

Serial port 1

J3

IDE interface LED

J26

Serial port 2

J4

Speaker

J27

Parallel port

J5

Soft off power supply

J29

VGA port

J6

Soft off power supply

J30

Floppy drive interface

J7

Chassis fan power

J38

IDE interface 1

J9

Wake on modem connector

JP5

IDE interface 2

J10

Riser slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

On board video disabled

J15

Pins 1 & 2 closed

 

On board video enabled

J15

Pins 2 & 3 closed

 

Parity enabled

J50

Pins 1 & 2 closed

 

Parity disabled

J50

Pins 2 & 3 closed

»

Password normal operation

JP14

Pins 1 & 2 closed

 

Password clear

JP14

Pins 2 & 3 closed

SIMM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(1) 256K x 36

None

2MB

(1) 512K x 36

None

2MB

(1) 256K x 36

(1) 256K x 36

3MB

(1) 512K x 36

(1) 256K x 36

4MB

(1) 1M x 36

None

4MB

(1) 512K x 36

(1) 512K x 36

5MB

(1) 1M x 36

(1) 256K x 36

6MB

(1) 512K x 36

(1) 1M x 36

8MB

(1) 2M x 36

None

8MB

(1) 1M x 36

(1) 1M x 36

9MB

(1) 2M x 36

(1) 256K x 36

10MB

(1) 2M x 36

(1) 512K x 36

12MB

(1) 2M x 36

(1) 1M x 36

16MB

(1) 4M x 36

None

16MB

(1) 2M x 36

(1) 2M x 36

17MB

(1) 256K x 36

(1) 4M x 36

SIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

18MB

(1) 512K x 36

(1) 4M x 36

20MB

(1) 4M x 36

(1) 1M x 36

24MB

(1) 4M x 36

(1) 2M x 36

32MB

(1) 8M x 36

None

32MB

(1) 4M x 36

(1) 4M x 36

33MB

(1) 8M x 36

(1) 256K x 36

34MB

(1) 8M x 36

(1) 512K x 36

36MB

(1) 8M x 36

(1) 1M x 36

40MB

(1) 8M x 36

(1) 2M x 36

48MB

(1) 8M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

VIDEO MEMORY CONFIGURATION

Note: Board is factory installed with either 512KB or 1MB video memory.

CPU SPEED SELECTION

Speed

J37

25MHz

Closed

33MHz

Open

50iMHz

Closed

66iMHz

Open

CPU TYPE SELECTION

Type

J24

J25

J31

80486SX

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

80486SX

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

80487SX

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

ODP486

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

80486DX

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

80486DX2

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

Note: The settings for the 80486SX2 are unidentified.