Asus P5A NOTE:, ASUS P5A User’s Manual, 12.Chassis Intrusion Alarm Lead (4-1pin CHASIS), 11.ATX Power Supply Connector (ATX, 20-pinblock)

III.INSTALLATION

11.ATX Power Supply Connector (ATX, 20-pin block)

This connector connects to a ATX power supply. The plug from the power supply will only insert in one orientation because of the different hole sizes. Find the proper orientation and push down firmly making sure that the pins are aligned.

IMPORTANT: Make sure that your ATX power supply can supply at least 10mAmp on the 5-volt standby lead (+5VSB). You may experience difficulty in powering on your system if your power supply cannot support the load. For Wake on LAN support, your ATX power supply must supply at least 720mAmp.

+12.0 Volts +5.0 Volts

+5.0 Volts Standby +5.0 Volts

Power Good -5.0 Volts

Ground Ground

+5.0 Volts Ground

Ground Ground

+5.0 Volts Power Supply On

Ground Ground

+3.3 Volts -12.0 Volts

+3.3 Volts +3.3 Volts

P5A ATX Power Connector

12.Chassis Intrusion Alarm Lead (4-1 pin CHASIS)

This lead is for a chassis intrusion monitor or sensor. The sensor is triggered when a high level signal is sent to the chassis signal lead. This occurs when a panel switch or light detector is triggered. This function requires the optional ASUS CIDB Chassis Sensor to be installed (see VI. ASUS CIDB)

NOTE: When the chassis is opened, connect/short the Chassis Signal pin to the +5VSB pin. When the chassis is closed, connect/short the Chassis Signal pin to the Ground pin.

+5Volt (Power Supply Stand By)

Chassis Signal

Ground

P5A Chassis Open Alarm Lead

INST ALLATION	Connectors
III.

ASUS P5A User’s Manual 29