Asus P4BP-MX P4BP-MX User Manual - Page 32

13. System panel connector (20-1 pin PANEL) This connector accommodates several system front panel functions. Keyboard Lock Speaker Power LED Connector +5 V PLED Keylock Ground +5V Ground Ground Speaker ExtSMI# Ground PWR Ground Reset Ground P4BP-MX P4BP-MX System Panel Connectors Reset SW SMI Lead ATX Power Switch* * Requires an ATX power supply. • System Power LED Lead (2-pin PLED) This 2-pin connector connects to the system power LED. The LED lights up when you turn on the system power. • Keyboard Lock Lead (2-pin KEYLOCK) This 2-pin connector connects to a chassis-mounted switch to allow the use of the keyboard lock feature. • System Warning Speaker Lead (4-pin SPEAKER) This 4-pin connector connects to the case-mounted speaker and allows you to hear system beeps and warnings. • Reset Switch (2-pin RESET) This 2-pin connector connects to the case-mounted reset switch for rebooting the system without turning off the power switch. • 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. • System Management Interrupt Lead (2-pin ExtSMI#) This 2-pin connector permits switching to suspend mode, or "Green" mode, in which system activity is instantly decreased to save power and to expand the life of certain system components. 1-22 Chapter 1: Product introduction