BCM QS750 User Manual download pdf (Page 23)

3. Installation

3.6.5 Front Panel connectors (J20, 15-pin)

Front Panel includes headers for the following six I/O connectors:

Power Switch, Power LED, Speaker, Reset, Sleep and HDD LED.

Keylock

Sleep Button

HDD-LED

Speaker Out

Power LED

Power Button

Reset

AMD

756

AMD

751

3.6.6 Keylock Switch (2-pin)

This header allows you to lock the keyboard with a button or a key manually.

3.6.7 Reset Switch Connector (2-pin)

This connector supports the front panel case-mounted reset button. It is advised that the reset

switch be used for rebooting the system in order to extend the life of the system’s power

supply.

3.6.8 HDD (IDE) LED Connector (2-pin)

The mainboard supports one straight 4-pin header for connecting to front Panel Hard Disk

activity LED indicator.

3.6.9 Sleep Switch (2-pin)

When the APM (Advanced Power Management) feature is enabled in the system BIOS and

the operating system’s APM driver is loaded, the system can enter the sleep (standby) mode

in one of the following ways:

Ø Optional front panel sleep/resume button

Ø Prolonged system inactivity using the BIOS inactivity timer feature.

The 2-pin header supports a front panel sleep/resume switch, which must be a momentary

SPST type that is normally open

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 49 50

No comments

BCM QS750 User Manual Page 23