User`s manual
26
3.INSTALLATION
BIOS and the operating system’s APM driver is loaded, the system can enter the
sleep (standby) mode in one of the following ways:
♦ Optional front panel sleep/resume button
♦ Prolonged system inactivity using the BIOS inactivity timer feature
(Section 4.5)
The 2-pin header supports a front panel sleep/resume switch, which must be a
momentary SPST type that is normally open
Power Switch (2-pin)
This connector supports the ATX case-mounted Power Switch, which in turn
supports System Suspend function. When the BIOS sets the Power Button
function to “Delay 4 sec.”, the system can be set to the suspended mode once you
push the power switch for no longer then 4 seconds. If the power switch is
pushed down for over 4 seconds the system will be totally Power Off. When the
BIOS setting sets the Delay 4 second to “Instant-off”, then Power Switch function
work as regular power switch.
Power LED (2-pin)
This header can be connected to a LED that will light when the computer is
powered on.
Speaker Connector (4-pin)
It is used to drive a chassis-mounted speaker if desired.