SETUP H/W .III

Connectors

III.HARDWARE SETUP

16.System Power LED Lead (3-1 pin KEYLOCK)

This 3-1 pin connector connects to the system power LED, which lights when the system is powered on and blinks when it is in sleep or soft-off mode.

17.Keyboard Lock Switch Lead (2-pin KEYLOCK)

This 2-pin connector connects to the case-mounted key switch to allow keyboard locking. NOTE: When the keyboard is locked, the mouse can still be used.

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

19.System Message LED Lead (2-pin 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 re- ceived. This function requires an ACPI OS and driver support.

20.System Management Interrupt Lead (2-pin 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 preceding figure) 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 prob- lems. This may require one or two pushes depending on the position of the switch.

21.ATX Power Switch / Soft-Off Switch (2-pin PWRSW)

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 or ON and SOFT OFF, depending on your BIOS or OS setting. Pushing 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.

22.Reset Switch Lead (2-pin 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.

 

Keyboard Lock

 

 

Speaker

 

Power LED

 

 

 

Connector

 

 

Keylock Ground

 

 

 

+5 V

PLED

+5V

Ground Ground SPKR

 

+5 V

MLED

ExtSMI# Ground PWR SW

Ground

ResetCon Ground

 

Message LED

 

 

Reset SW

 

SMI Lead

 

ATX Power Switch*

P2B-F System Panel Connections

* Requires an ATX power supply.

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ASUS P2B-F User’s Manual