Asus A7V333 A7V333 User Manual - Page 56

The following 20-pin PANEL illustration is for items 27-33. Keyboard Lock Speaker Power LED Connector +5 V PLED Keylock Ground +5V Ground Ground Speaker +5 V MLED ExtSMI# Ground PWR Ground Reset Ground A7V333 ® Message LED SMI Lead Reset SW ATX Power Switch* * Requires an ATX power supply. A7V333 System Panel Connectors 27) System Power LED Lead (3-1 pin PLED) This 3-1 pin connector supplies the system power LED. The LED lights up when the system power is on, and the LED blinks when the system is in sleep or soft-off mode. 28) Keyboard Lock Switch Lead (2 pin KEYLOCK) This 2-pin connector supplies the case-mounted key switch for keyboard locking. 29) System Warning Speaker Lead (4 pin SPEAKER) This 4-pin connector supplies the case-mounted speaker to sound system beeps and warnings. 30) System Message LED Lead (2 pin MLED) This 2-pin connector supports the system message LED to indicate receipt of messages from a fax/modem. The normal status for this LED is ON, when there is no incoming data signal. The LED blinks when data is received. The system message LED feature requires an ACPI OS and driver support. 31) System Management Interrupt Lead (2 pin SMI) 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. Attach the case-mounted suspend switch this 2-pin connector. 32) ATX Power Switch / Soft-Off Switch Lead (2 pin PWR) The system power is controlled by a momentary switch attached to this connector. Pressing the button switches the system between ON and SLEEP, or ON and SOFT OFF, depending on the BIOS or OS settings. Pressing the button while in the ON mode for more than 4 seconds turns the system off. 33) Reset Switch Lead (2-pin RESET) This 2-pin connector supports the case-mounted reset switch for rebooting the system without turning off the power switch. 44 Chapter 2: Hardware information