The following PANEL illustration is used for items 21–27:

 

Keyboard Lock

 

Speaker

 

 

 

 

 

 

Connector

 

Power LED

Keylock

Ground

 

Ground Ground

 

 

+5 V

PLED

+5V

SPKR

 

+5 V

MLED

ExtSMI#

Ground

PWR SW Ground

ResetCon

Ground

A7M266-D

Message LED

 

 

 

Reset SW

 

 

 

 

 

SMI Lead

 

 

ATX Power Switch*

* Requires an ATX power supply.

A7M266-D System Panel Connectors

21)System Power LED Lead (3-1 pin PWRLED)

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.

22)Keyboard Lock Switch Lead (2-pin KEYLOCK)

This 2-pin connector supports a case-mounted key switch for keyboard locking.

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

24)System Message LED Lead (2-pin MSGLED)

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.

25)System Management Interrupt Lead (2-pin SMISW)

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.

26)ATX Power Switch / Soft-Off Switch Lead (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.

27)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.