INSTALLATIONS

J2: Digital I/O

Signal Name

Pin

Pin

Signal Name

GND

1

2

VCC

OUT3

3

4

OUT1

OUT2

5

6

OUT0

IN3

7

8

IN1

IN2

9

10

IN0

J3: System Function Connector

J3 provides connectors for system indicators that provide light indication of the computer activities and switches to change the computer status. J3 is a 20-pin header that provides interfaces for the following functions.

Hard Disk Drive LED Not Defined

Not Defined

Speaker

Reset Switch

ATX Power On Switch

Power LED

Speaker: Pins 1 - 4

This connector provides an interface to a speaker for audio tone generation. An 8-ohm speaker is recommended.

Pin #

Signal Name

1

Speaker out

2

No connect

3

Ground

4

+5V

Power LED: Pins 11 - 15

 

Pin #

Signal Name

11

Power LED

12

No connect

13

Ground

14

No connect

15

Ground

18

MB896 User’s Manual

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Image 22
Intel MB896 user manual J2 Digital I/O, J3 System Function Connector