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SPK (Speaker
Connector)
A front panel speaker
can be connected to this header. When you reboot the computer, the speaker
will sound a short "beep". If there is something wrong during the Power On Self-Test, the speaker
otherwise will sound "irregular beep" to warn you.
HLED (Hard Drive LED Header)
This header can be connected to an HLED on the front panel of a computer case. The HLED will
flicker during the hard drive disk (HDD) activity. The HDD activity only applies to those IDE
devices directly connected to the mainboard.
RST (Reset Switch Header)
This header can be connected to a momentary SPST switch. The switch is normally left open. When
the switch closed, it will cause the mainboard to reset and run the POST (Power On Self Test).
SLP (Sleep Buttom)
Connecting the SLP connector to this header can make the computer system automatically entering
into the power saving mode when it is unused.
PWRLED (Power LED )
This mainboard provides a 3-pin power PWRLED head
er on the front panel of a computer case;
connect the 3-pin power LED cable to the header. The PWRLED will illuminate while the computer
is powered on.
ON/OFF (P
ower-on Buttom)
This header can be connected to a front panel power switch. T
he
switch must pull the Po
wer Button
pin to ground for at least 50 ms to signal the power supply to switch on or off (the time
required is
due to internal debounce circuitry on the system board). At least two seconds must pass before the
power supply will recognize another on/off signal.
IR (IrDA Connector)
Connecting the IrDA connector to this header, then you can transfer the data through this function.
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