Asus CUA - Manual (Page 36)

36 ASUS CUA User’s Manual
3. HARDWARE SETUP
3. H/W SETUP
Connectors
12) Serial Infrared Module Connector (5-pin IR)
This connector supports an optional wireless transmitting and receiving infrared
module. This module mounts to a small opening on system cases that support
this feature. You must also configure the setting through Peripheral Setup (BIOS)
to select whether UART2 is directed for use with COM2 or IrDA. Use the five
pins as shown in Back View and connect a ribbon cable from the module to the
motherboard’s IR connector according to the pin definitions.
CUA Infrared Module Connector
CUA ®
Front View Back View
+5V IRTX
IRRX
(NC) GND
IR
+5V
IRRX IR
TX
GND
1
13) ATX Power Supply Connector (20-pin block ATXPWR)
This connector connects to an ATX power supply. The plug from the power sup-
ply 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 (minimum recommended
wattage: 200 watts; 235W for a fully-configured system) can supply at least 20
amperes on the +5-volt lead and at least 10mA (720mA recommended) on the +5-
volt standby lead (+5VSB). Your system may become unstable/unreliable and may
experience difficulty in powering up if your power supply is inadequate. For Wake-
On-LAN support, your ATX power supply must supply at least 720mA +5VSB.
CUA ATX Power Connector
+3.3 V
olts
-12.0 V
olts
Ground
Power Supply On
Ground Ground Ground
-5.0 V
olts
+5.0 V
olts
+5.0 V
olts
Power Good +12.0 V
olts
+3.3 V
olts
+3.3 V
olts
Ground +5.0 V
olts
Ground +5.0 V
olts
Ground +5V Standby
CUA ®