Asus PU-DLS User's Guide download pdf (Page 52)

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Chapter 2: Hardware information

• 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 Message LED Lead (2-pin MLED)

This 2-pin connector is for the system message LED that indicates

receipt of messages from a fax/modem. The normal status for this LED

is OFF, 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.

• System Warning Speaker Lead (4-pin SPEAKER)

This 4-pin connector is for a chassis-mounted speaker.

• ATX Power Switch / Soft-Off Switch Lead (2-pin PWR)

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.

• System Management Interrupt Lead (2-pin SMI)

This lead connects to the case-mounted suspend switch, and allows

you to manually place the system into “Suspend Mode” or “Green

Mode” where system activity is decreased to save electricity and

expand the life of system components.

• Keylock Lead (2-pin KEYLOCK)

This lead connects to a chassis-mounted switch to allow use of the

keyboard lock feature.

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Asus PU-DLS User's Guide Page 52