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Chapter 4: Motherboard info
5. ATX power connectors (24-pin EATXPWR, 4-pin ATX12V)
These connectors are for ATX power supply plugs. 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.
R
ATX Power Connector
+12V DC
GND
+12V DC
GND
ATX12V
+3
Vo
lts
+3
Vo
lts
5
Vo
lts
+5
Vo
lts
Ground
Ground Power OK +5V S12
Vo
lts
-5 V
olts
+5
Vo
lts
+3
Vo
lts
-12
Vo
lts
Ground
Ground
Ground
PSON#
Ground
+5
Vo
lts
+12
Vo
lts
+3
Vo
lts
+5
Vo
lts
Ground
EATXPWR
•
Do not forget to connect the 4-pin ATX +12 V power plug; otherwise, the
system will not boot.
• Use of a PSU with a higher power output is recommended when
configuring a system with more power-consuming devices. The system
may become unstable or may not boot up if the power is inadequate.
• Make sure that your power supply unit (PSU) can provide at least the
minimum power required by your system.
6. Internal audio connectors (4-pin CD)
These connectors allow you to receive stereo audio input from sound sources
such as a CD-ROM, TV tuner, or MPEG card.
Enable the CD-IN function in the audio utility when using this connector.
R
CD Connector
CD
(black)
Right
Audio Channel
Left
Audio Channel
Ground
Ground
