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Chapter 1: Product introduction
3. ATX power connectors (20-pin ATXPWR1, 4-pin ATX12V1)
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 ATX power 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 12A on the +12V lead
and at least 2A on the +5-volt standby lead (+5VSB). The minimum
recommended wattage is 250W, or 300W for a fully configured system. The
system may become unstable and may experience difficulty powering up if the
power supply is inadequate.
4. Internal audio connectors (4-pin CD1, AUX1)
These connectors allow you to receive stereo audio input from sound sources
such as a CD-ROM, TV tuner, or MPEG card.
P4B533-X
®
P4B533-X ATX Power Connector
ATXPWR1ATX12V1
+12V DC GND
+12V DC GND
Pin 1
+3.3VDC
-12.0VD
C
COM
PS_ON#
COM
COM
COM
-5.0VDC
+5.0VDC
+5.0VDC
PWR_OK
+12.0VDC
+3.3VDC
+3.3VDC
COM
+5.0VDC
COM
+5.0VDC
COM
+5VSB
P4B533-X
®
P4B533-X Internal Audio Connectors
CD1(Black)
AUX1(White)
Right Audio Channe
l
Left Audio Channel
Ground
Ground
Right Audio Channe
l
Left Audio Channel
Ground
Ground