...because we can't all be on the bleeding edge...





486MI REV. 1.11

ADVANCED INTEGRATION RESEARCH, INC.

486MI REV. 1.11

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

20/25/33/40/50(internal)/50/66(internal)MHz

Chip Set

SIS

Max. Onboard DRAM

64MB

Cache

64/128/256/512KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (3), floppy drive interface, game port, IDE interface, parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE port

CN1

Green PC LED

J3

Floppy port

CN2

Reset switch

J4

Parallel port

CN3

Turbo switch

J5

Game port

CN4

Turbo LED

J6

Serial port 1

CN5

IDE interface LED

J7

Serial port 2

CN6

32-bit VESA Local bus slots

S1, S2 & S3

Speaker

J1

Green PC connector

W1

Power LED & keylock

J2

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Factory configured - do not alter

JP3

N/A

Factory configured - do not alter

JP4

N/A

Factory configured - do not alter

JP9

N/A

Monitor type select monochrome, VGA or EGA

JP16

Open

 

Monitor type select CGA

JP16

Closed

Flash BIOS write protect enabled

JP17

pins 1 & 2 closed

 

Flash BIOS write protect disabled

JP17

pins 2 & 3 closed

CMOS memory normal operation

JP20

pins 1 & 2 closed

 

CMOS memory clear

JP20

pins 2 & 3 closed

IDE interface enabled

JP29

pins 1 & 2 closed

 

IDE interface disabled

JP29

pins 2 & 3 closed

Parallel port select interrupt IRQ7

JP30

pins 1 & 2 closed

 

Parallel port select interrupt IRQ5

JP30

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

2MB

(1) 512K x 36

None

None

None

4MB

(1) 512K x 36

None

(1) 512K x 36

None

4MB

(1) 1M x 36

None

None

None

6MB

(1) 512K x 36

None

(1) 1M x 36

None

8MB

(1) 1M x 36

(1) 1M x 36

None

None

8MB

(1) 2M x 36

None

None

None

10MB

(1) 512K x 36

None

(1) 1M x 36

(1) 1M x 36

10MB

(1) 512K x 36

None

(1) 2M x 36

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

None

12MB

(1) 2M x 36

None

(1) 1M x 36

None

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

None

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

None

(1) 2M x 36

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

None

(1) 4M x 36

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

None

(1) 4M x 36

(1) 4M x 36

40MB

(1) 2M x 36

None

(1) 8M x 36

None

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

None

48MB

(1) 8M x 36

None

(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

None

(1) 4M x 36

(1) 4M x 36

64MB

(1) 8M x 36

None

(1) 8M x 36

None

CACHE JUMPER CONFIGURATION

Size

JP10

JP11

JP12

JP13

JP14

JP15

64KB

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

pins 1 & 2

pins 1 & 2

128KB

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

256KB

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 2 & 3

pins 2 & 3

pins 2 & 3

256KB

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 2 & 3

Note:Pins designated should be in the closed position.

CACHE SIZE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

512KB

(4) 128K x 8

NONE

(1) 32K x 8

CPU TYPE CONFIGURATION

Type

JP1

JP2

80486SX

Open

pins 2 & 3 closed

80486DX

pins 1 & 2 closed

pins 1 & 2 and 3 & 4 closed

80487SX

pins 2 & 3 closed

pins 1 & 2 and 3 & 4 closed

ODP486SX

pins 2 & 3 closed

pins 1 & 2 and 3 & 4 closed

80486DX2

pins 1 & 2 closed

pins 1 & 2 and 3 & 4 closed

CPU SPEED CONFIGURATION

Speed

JP5

JP6

JP7

JP26

JP27

JP28

20MHz

Closed

Open

Open

pins 2 & 3

pins 2 & 3

pins 1 & 2

25MHz

Open

Closed

Closed

pins 2 & 3

pins 2 & 3

pins 1 & 2

33MHz

Open

Closed

Open

pins 2 & 3

pins 2 & 3

pins 1 & 2

40MHz

Open

Open

Closed

pins 1 & 2

pins 1 & 2

pins 2 & 3

50i MHz

Open

Closed

Closed

pins 2 & 3

pins 2 & 3

pins 1 & 2

50MHz

Open

Open

Open

pins 1 & 2

pins 1 & 2

pins 2 & 3

66i MHz

Open

Closed

Open

pins 2 & 3

pins 2 & 3

pins 1 & 2

Note:Pins designated should be in the closed position.

IDE RECOVERY TIME

Speed

Recovery Time

JP22

JP23

JP24

<33mhz

9T, low speed

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

<33mhz

7T, middle speed

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

<33mhz

5T, high speed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

>40mhz

13T, low speed

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

>40mhz

11T middle speed

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

>40mhz

9T high speed

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

VESA WAIT STATE/BUS SPEED (ID2 &AMP; ID3) CONFIGURATION

Speed

Setting

ID2

ID3

<=33MHz

0 wait states

pins 1 & 2 closed

pins 1 & 2 closed

>33MHz

1 wait state

pins 2 & 3 closed

pins 2 & 3 closed