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30 ASUS P5A-VM User’s Manual
III. INSTALLATION
Connectors
III. INST ALLATION
12. 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.
P5A-VM ATX Power Connector
+3.3Volts
+3.3 Volts
-12.0Volts
+3.3 Volts
Ground
Ground
Power Supply On
+5.0 Volts
Ground
Ground
Ground
Ground
-5.0 Volts
Power Good
+5.0 Volts
+5V Standby
+5.0 Volts
+12.0Volts
Ground
+5.0 Volts
R
01
13. IrDA/Fast IR-Compliant Infrared Mdule Connector (IR, 5-pin block)
This connector supports the optional wireless transmitting and receiving infra-
red module. This module mounts to a small opening on system cases that sup-
port this feature. You must also configure the setting through UART2 Use Infra-
red in Chipset Features Setup to select whether UART2 is directed for use
with COM2 or IrDA. Use the five pins as shown below (Back View) and con-
nect a ribbon cable from the module to the motherboard according to the pin
definitions.
P5A-VM Infrared Module Connector
Front View
+5V
IRTX
IRRX
(NC)
GND
Back View
+5V
IRRX
IRTX
IRRXH
GND
R
01