Asus P4P8X User's Guide download pdf (Page 39)

ASUS P4P8X motherboard user guide

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14. System panel connector (20-pin PANEL1)

This connector accommodates several system front panel functions.

P4P8X

P4P8X System Panel Connectors

Requires an ATX power supply

PLED-

Ground

PWR

+5V

Speaker

Connector

Power LED

Ground

Reset SW

SMI Lead

ExtSMI#

Ground

Reset

Ground

ATX Power

Switch*

PLED+

IDE_LED-

IDE_LED+

IDE_LED

• 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.

• Hard disk activity LED (2-pin IDELED)

This 2-pin connector supplies power to the hard disk activity LED. The read

and write activities of any device connected to the primary or secondary IDE

connector cause this LED to light up.

• 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.

• 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 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.

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Asus P4P8X User's Guide Page 39

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