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American Megatrends MAN-758 User Manual

Page 27

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Chapter 1 Hardware Installation

23

Step 9 Attach Cables,

Continued

J41 Keyboard Lock J41 is a 5-pin single-inline berg that is attached via a cable to the keyboard

lock connector (or separate keyboard lock and Power LED connectors). The
computer chassis may not include the keyboard lock and Power LED on a
single connector. The keyboard lock allows the user to lock the keyboard,
protecting the system from unauthorized use. Pin 1 on the motherboard is
identified by the broad arrow.

Pin

Description

1

VCC

2

Ground

3

Ground

4

Keyboard Lock (KBDINH)

5

Ground

J33 Turbo LED J33 is a 2-pin berg that is attached via a cable to the externally-mounted bipolar

Turbo LED. The LED lights when the motherboard is running at high speed.

J38 IDE LED

J38 is a two-pin berg that is attached via a cable to the externally-mounted IDE
Activity LED. This LED lights when the IDE drive is running.

Warning

In some IDE drives, you may have to disable the

IDE LED mounted on the drive by changing a

jumper or setting a switch on the IDE drive itself,

before the IDE drive sends a signal to J34.

Cont’d