19.SIRQ1 connector (2-pin SIRQ1)

This connector allows you to connect the serial IRQ cable. This cable is required by some PCI cards such as those with PCMCIA function.

 

SIRQ1

 

SERIRQ

P4S333

GND

P4S333 SIRQ1 Connector

20.System panel connector (20-pin PANEL1)

This connector accommodates several system front panel functions.

P4S333

P4S333 System Panel Connectors

 

 

Speaker

Power LED

Connector

 

Ground Ground Speaker

+5 V

PLED

+5V

+5 V

MLED

ExtSMI# Ground PWR Ground

Reset Ground

MessageLED

 

Reset SW

ATX Power

SMI Lead

 

 

Switch*

*Requires an ATX power supply.

•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 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.

ASUS P4S333 motherboard user guide

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