INSTALLATION .III

Connectors

III.INSTALLATION

17.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). Requires ACPI OS support.

18.System Management Interrupt 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. May require one or two pushes depending on the position of the switch. Wake-up can be controlled by settings in the BIOS but the keyboard will always allow wake- up (the SMI lead cannot wake-up the system). If you want to use this connector, “Suspend Switch” in the Power Management Setup of the BIOS SOFTWARE section should be on the default setting of Enable.

19.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.

20.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 in order to prolong the life of the system’s power supply.

21.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.

22.Keyboard Lock Switch Lead (KEYLOCK)

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

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

Message

 

+5V

System

+5V

NC

LED

Power LED

GND

GND

SMI Lead

GND

LOCK

Keyboard Lock

 

GND

 

ATX Power

GND

+5V

Speaker

Switch

 

GND

Reset SW

GND

GND

Connector

SPKR

 

System Panel Connections

32

ASUS TX97-XE User’s Manual