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32 ASUS P2L97-S User’s Manual
(Connectors)
III. INSTALLATION
III. INSTALLATION
14. LED Lead (TB_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. This function requires OS and driver support.
15. SMI Suspend Switch Lead (SMI)
This allows the user to manually place the system into a suspend mode or “Green”
mode where system activity will be decreased to save electricity and expand the
life of certain components when the system is not in use. This 2-pin connector
connects to the case-mounted suspend switch. If you do not have a switch for
the connector, you may use the “Turbo Switch”. 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 presses 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, set “Suspend Mode” under the Power Management Setup
of the BIOS SOFTWARE section to the preferred time after which the system
must go into suspend mode when you press the switch.
16. ATX Power Switch / Soft Power Switch (PWR_SW)
The system power is controlled by a momentary switch connected to this lead.
Pressing the button once will switch the system between ON and SLEEP. Press-
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.
17. 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 to prolong the life of the system’s power supply.
18. System Power LED (KEYLOCK)
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.
19. Keyboard Lock Switch Lead (KEYLOCK)
This 2-pin connector connects to the case-mounted key switch to allow key-
board locking.
20. Speaker Connector (SPEAKER)
This 4-pin connector connects to the case-mounted speaker.
P2L97-S System Panel Connections
PLED
Ground
TB_LED
PWR_SW
*
Requires an ATX power supply.
+5 V
KEYLOCK
+5V
SPKR
Keyboard Lock
Speaker
Connector
Power LED
Ground
+5 V
Reset SW
SMI Lead
Turbo LED
ATX Power
Switch*
ExtSMI#
+3VSB
ResetCon
Ground
Ground
Ground
R