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ASUS P4T533-C motherboard user guide
35
12. ATX power connectors (20-pin ATXPWR, 4-pin 12V EZ_PLUG, 4-
pin AUX12V)
These connectors connect to an ATX 12V power supply. The plugs from
the power supply are designed to fit these connectors in only one
orientation. Find the proper orientation and push down firmly until the
connectors completely fit. In addition to the 20-pin ATXPWR connector,
this motherboard requires that you connect the 4-pin ATX +12V power
plug to provide sufficient power to the CPU.
Make sure that your ATX 12V power supply can provide at least 8A on
the +12V lead and at least 1A on the +5-volt standby lead (+5VSB).
The minimum recommended wattage is 230W, or 300W for a fully
configured system. The system may become unstable and may
experience difficulty powering up if the power supply is inadequate.
P4T533-C
®
P4T533-C ATX & Auxiliary Power Connectors
ATXPWR
ATX12V
EZ_PLUG
+3.3VDC
-12.0VDC
GND
PS_ON#
GND
GND
GND
-5.0VDC
+5.0VDC
+5.0VDC
PWR_OK
+12.0VDC
+3.3VDC
+3.3VDC
GND
+5.0VDC
GND
+5.0VDC
GND
+5VSB
+12V
GND
NC
GND
+12V DCGND
+12V DCGND
P4T533-C
®
P4T533-C SMBus Connector
SMB
1
SMBCLK
Ground
SMBDATA
+3V
FLOATING
13. SMBus Connector (6-1 pin SMB)
This connector supports SMBus (System Management Bus) devices.
SMBus devices communicate by means of the SMBus with an SMBus
host and/or other SMBus devices. SMBus is a multi-device bus that
permits multiple chips to connect to the same bus and enable each one
to act as a master by initiating data transfer.