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ASUS A7V266-M motherboard user guide
37
21) System Power LED Lead (3-1 pin PLED)
This 3-1 pin connector supplies the system power LED. The LED lights up
when the system power is on, and the LED blinks when the system is in
sleep or soft-off mode.
22) Keyboard Lock Switch Lead (2-pin KEYLOCK)
This 2-pin connector supplies the case-mounted key switch for keyboard
locking.
23) System Warning Speaker Lead (4-pin SPEAKER)
This 4-pin connector supplies the case-mounted speaker to sound system
beeps and warnings.
24) System Message LED Lead (2-pin MLED)
This 2-pin connector supports the system message LED to indicate receipt
of messages from a fax/modem. The normal status for this LED is ON,
when there is no incoming data signal. The LED blinks when data is received.
The system message LED feature requires an ACPI OS and driver support.
25) System Management Interrupt Lead (2-pin SMI)
This 2-pin connector permits switching to suspend mode, or “Green” mode,
in which system activity is instantly decreased to save power and to expand
the life of certain system components. Attach the case-mounted suspend
switch this 2-pin connector.
26) ATX Power Switch / Soft-Off Switch Lead (2-pin PWR)
The system power is controlled by a momentary switch attached to this
connector. Pressing the button switches the system between ON and SLEEP,
or ON and SOFT OFF, depending on the BIOS or OS settings. Pressing the
button while in the ON mode for more than 4 seconds turns the system off.
27) Reset Switch Lead (2-pin RESET)
This 2-pin connector supports the case-mounted reset switch for rebooting
the system without turning off the power switch.
®
A7V266-M
A7V266-M System Panel Connectors
*
Requires an ATX power supply.
PLED
Ground
MLED
PWR
+5 V
Keylock
+5V
Speaker
Speaker
Connector
Power LED
Ground
+5 V
Reset SW
SMI Lead
Message LED
ExtSMI#
Ground
Reset
Ground
Ground
Ground
Keyboard Lock
ATX Power
Switch*
The following 20-pin PANEL illustration is for items 21-30.