ADVANCED INTEGRATION RESEARCH, INC.

486PH REV. 1.0

Processor

80486SX/CX486DX/AM486DX/80486DX/CX486DX2/AM486DX2/80486DX2/ AM486DX4/80486DX4

Processor Speed

25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz

Chip Set

Intel

Max. Onboard DRAM

64MB

Cache

128/256/512KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2), 32-bit PCI slots (3), green PC connector, IDE interface

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J1

Turbo LED

J6

Power LED & keylock

J2

IDE interface

J7

IDE interface LED

J3

Green PC connector

J8

Turbo switch

J4

32-bit PCI slots

PC1 - PC3

Reset switch

J5

32-bit VESA local bus slots

SL1 & SL2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

JP1

pins 1 & 2 closed

 

CMOS memory clear

JP1

pins 2 & 3 closed

»

Monitor type select monochrome/EGA/VGA

JP2

Open

 

Monitor type select CGA

JP2

Closed

»

Factory configured - do not alter

JP3

pins 1 & 2 closed

»

Factory configured - do not alter

JP14

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

12MB

(1) 2M x 36

(1) 1M x 36

NONE

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

(1) 1M x 36

NONE

(1) 1M x 36

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

16MB

(1) 4M x 36

NONE

NONE

NONE

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

24MB

(1) 2M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 8M x 36

NONE

NONE

NONE

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

40MB

(1) 2M x 36

(1) 4M x 36

NONE

(1) 4M x 36

40MB

(1) 2M x 36

(1) 8M x 36

NONE

NONE

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(2) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(2) 32K x 8

256KB

(4) 64K x 8

NONE

(2) 32K x 8

512KB

(4) 128K x 8

NONE

(2) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP8

JP9

JP11

JP12

128KB

Closed

Open

Open

Open

256KB

Open

Closed

Closed

Open

256KB

Closed

Open

Closed

Open

512KB

Closed

Open

Closed

Closed

CPU TYPE CONFIGURATION

Type

JP10

JP16

JP23

JP24

JP25

80486SX

Closed

Open

Open

2 & 3

1 & 2

CX486DX (3.3v)

Closed

Closed

Closed

1 & 2

2 & 3

CX486DX (5v)

Closed

Open

Closed

1 & 2

2 & 3

AM486DX

Closed

Open

Closed

1 & 2

2 & 3

80486DX

Closed

Open

Open

1 & 2

1 & 2

CX486DX2 (3.3v)

Closed

Closed

Closed

1 & 2

2 & 3

CX486DX2 (5v)

Closed

Open

Closed

1 & 2

2 & 3

AM486DX2

Closed

Open

Open

1 & 2

2 & 3

80486DX2

Closed

Open

Open

1 & 2

1 & 2

AM486DX4

Closed

Open

Closed

1 & 2

2 & 3

80486DX4

Closed

Open

Open

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

JP6

JP19

JP20

JP21

25MHz

pins 2 & 3 closed

Closed

Open

Open

33MHz

pins 1 & 2 closed

Open

Closed

Closed

50iMHz

pins 2 & 3 closed

Closed

Open

Open

66iMHz

pins 1 & 2 closed

Open

Closed

Closed

75iMHz

pins 2 & 3 closed

Closed

Open

Open

100iMHz

pins 1 & 2 closed

Open

Closed

Closed