INSTALLATION .III

Connectors

III.INSTALLATION

16.Message LED Lead (MSG.LED)

This indicates whether a message has been received from a fax/modem. The LED will remain lit when there is no signal and blink when there is data transfer or waiting in the inbox. This function requires ACPI OS and driver support.

17.SMI Suspend Switch Lead (SMI)

This allows the user to manually place the system into a suspend mode or “Green” mode where system activity will be instantly decreased to save electricity and expand the life of certain components when the system is not in use. This 2-pin connector (see the figure below) connects to the case-mounted suspend switch. If you do not have a switch for the connector, you may use the “Turbo Switch” since it does not have a function. SMI is activated when it detects a short to open moment and therefore leaving it shorted will not cause any problems. This may require one or two pushes depending on the position of the switch.

18.ATX Power Switch / Soft Power Switch (PWR.SW)

The system power is controlled by a momentary switch connected to this lead. Pushing the button once will switch the system between ON and SLEEP. Push- ing the switch while in the ON mode for more than 4 seconds will turn the system off. The system power LED shows the status of the system’s power.

19.Reset Switch Lead (RESET)

This 2-pin connector connects to the case-mounted reset switch for rebooting your computer without having to turn off your power switch. This is a preferred method of rebooting to prolong the life of the system’s power supply.

20.System Power LED (PWR LED)

This 3-pin connector connects the system power LED, which lights when the system is powered on and blinks when it is in sleep mode.

21.Keyboard Lock Switch Lead (KEYLOCK)

This 2-pin connector connects to the case-mounted key switch to allow key- board locking.

22.Speaker Connector (SPEAKER)This 4-pin connector connects to the case-mounted speaker.

Message

 

+5 V

+5 V

 

LED

 

MLED

PLED

SMI Lead

ExtSMI#

KEYLOCK

Ground

Ground

ATX Power

PWR_SW

+5V

Switch*

+3VSB

 

Ground

Reset SW

ResetCon

Ground

Ground

SPKR

* Requires an ATX power supply.

P2B System Panel Connections

Power LED

Keyboard Lock

Speaker

Connector

32

ASUS P2B User’s Manual