Asus P4S800-MX - Manual (Page 32)

1-24 Chapter 1: Product introduction
• Power Switch / Soft-Off Switch Lead (2-pin PWR_BTN)
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.
• IDE LED Lead (2-pin IDE_LED)
This 2-pin connector supplies power to the hard disk drive activity LED. The
read or write activities of any device connected to the primary or secondary
IDE connector cause this LED to light up.
• 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.