Asus P4P800 DELUXE User Manual page 62

17. System panel connector (20-pin PANEL)
This connector accommodates several system front panel functions.
P4P800
P4P800 System Panel Connectors
• System Power LED Lead (3-1 pin PLED)
This 3-1 pin connector connects to the system power LED. The LED
lights up when you turn on the system power, and blinks when the
system is in sleep mode.
• System Warning Speaker Lead (4-pin SPKR)
This 4-pin connector connects to the case-mounted speaker and
allows you to hear system beeps and warnings.
• System Management Interrupt Lead (2-pin SMI)
This 2-pin connector allows you to manually place the system into a
suspend mode, or "green" mode, where system activity is instantly
decreased to save power and to expand the life of certain system
components. Attach the case-mounted suspend switch to this 2-pin
connector.
• ATX Power Switch / Soft-Off Switch Lead (2-pin PWRBTN)
This connector connects a switch that controls the system power.
Pressing the power switch turns the system between ON and SLEEP,
or ON and SOFT OFF, depending on the BIOS or OS settings.
Pressing the power switch while in the ON mode for more than 4
seconds turns the system OFF.
• Reset Switch Lead (2-pin RESET)
This 2-pin connector connects to the case-mounted reset switch for
rebooting the system without turning off the system power.
• Hard disk activity LED (2-pin IDE_LED)
This connector supplies power to the hard disk activity LED. Any read
or write activity of an IDE device cause this LED to light up.
2-34
Power LED
®
IDE_LED
SMI Lead
Requires an ATX power supply.
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Chapter 2: Hardware information
Speaker
Connector
Reset SW
ATX Power
Switch*