beautypg.com

Hardware setup, Connectors 3. h/w setup – Asus P3C-D User Manual

Page 47

background image

ASUS P3C-D User’s Manual

47

20) 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, blinks when it is in sleep mode, and turns off when it
is in soft-off mode.

21) 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.

22) System Warning Speaker Connector (4-pin SPEAKER)

This 4-pin connector connects to the case-mounted speaker.

23) 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 received.
This function requires an ACPI OS as well as application and driver support.

24) 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 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 there-
fore leaving it shorted will not cause any problems. This may require one or two
pushes depending on the position of the switch.

25) ATX Power / Soft-Off Switch Lead (2-pin PWR)

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.

26) 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.

P3C-D

P3C-D System Panel Connectors

*

Requires an ATX power supply.

PLED

Ground

TB_LED

PWR

+5 V

Keylock

+5V

Speaker

Speaker
Connector

Power LED

Ground

+5 V

Reset SW

SMI Lead

Message LED

ExtSMI#

+3VSB

Reset

Ground

Ground

Ground

Keyboard Lock

ATX Power
Switch*

3. HARDWARE SETUP

Connectors

3. H/W SETUP