IBM CORPORATION

APTIVA 2144 TYPE G-1

Processor

Pentium

Processor Speed

75/90/100MHz

Chip Set

Unidentified

Video Chip Set

Unidentified

Maximum Onboard Memory

128MB

Maximum Video Memory

2MB

Cache

256/512KB

BIOS

Unidentified

Dimensions

254mm 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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Front panel connector

J1D1

Serial port

J6K1

VGA port

J1K1

PS/2 mouse port

J7K1

VESA feature connector

J1H1

IDE interface 2

J8F1

Front panel connector

J2A2

Floppy drive interface

J9D1

Parallel port

J3K1

IDE interface 1

J9F2

Serial port

J5K1

Riser slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

?

Flash BIOS normal operation

J5J1

Pins 1 & 3 closed

 

Flash BIOS clear

J5J1

Pins 1 & 2 closed

?

Factory configured - do not alter

J8A1

Unidentified

?

Password enabled

SW1E1/3

Off

 

Password disabled

SW1E1/3

On

?

CMOS memory normal operation

SW1E1/4

Off

 

CMOS memory clear

SW1E1/4

On

?

Factory configured - do not alter

SW1E1/5

Off

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) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M 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) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

Note: Board accepts x 32 SIMMs. The location of banks 0 & 1 are unidentified.

CACHE CONFIGURATION

Size

Bank 0

TAG

256KB

(8) 32K x 8

(1) 32K x 8

512KB

(8) 64K x 8

(1) 32K x 8

CACHE SWITCH CONFIGURATION

Size

SW1E1/1

SW1E1/2

None

On

N/A

256KB

Off

Off

512KB

Off

On

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

1MB

(2) 256K x 16

None

2MB

(2) 256K x 16

(2) 256K x 16

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

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

SW1E1/6

SW1E1/7

SW1E1/8

75MHz

50MHz

1.5x

Off

Off

Off

90MHz

60MHz

1.5x

Off

On

Off

100MHz

66MHz

1.5x

Off

Off

On

CPU TYPE SELECTION

Type

J9C1

Standard

Pins 1 & 3 closed

VRE

Pins 5 & 7 closed

ISA BUS SPEED SELECTION

CPU speed

ISA 1/6

ISA 1/8

J5J1 (ISA 1/6)

J5J1 (ISA 1/8)

75MHz

8.33MHz

6.25MHz

Pins 5 & 7 open

Pins 5 & 7 closed

90MHz

10MHz

7.5MHz

Pins 5 & 7 open

Pins 5 & 7 closed

100MHz

11MHz

8.25MHz

Pins 5 & 7 open

Pins 5 & 7 closed