Asus A7A266 - Manual (Page 43)

ASUS A7A266 User’s Manual 43
3. HARDWARE SETUP
Connectors
3. H/W SETUP
The following PANEL illustration is used for items 21-27
A7A266 System Panel Connectors
* Requires an ATX power supply.
Keylock
PLED
Ground
MLED
PWR_SW
+5 V Keylock +5V SPKR
Ground
+5 V
ExtSMI#
ResetCon
Ground Ground Ground
Reset SW
Power LED
ATX Power Switch*
Message LED
SMI Lead
Speaker
Connector
Ground
0 1 0 1
A7A266
21) System Power LED Lead (3-1 pin PLED)
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 connects to the case-mounted key switch to allow
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 MLED)
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 received.
This function requires an ACPI OS and driver support.
25) 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.
26) ATX Power Switch / Soft-Off Switch Lead (2-pin PWRBTN)
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.