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20 ASUS P/I-XP55T2P4 User’s Manual
III. INSTALLATION
5. ATX Power Supply Connector (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 the ATX power supply can take at least
10mAmp load on the 5Volt standby lead (5VSB). You may experience
difficulty in powering on your system without this.
ATX Power Connector
on Motherboard
3.3V
-12.0V
GND
PS-ON
GND
GND
GND
-5.0V
5.0V
5.0V
PW-0K
12.0V
3.3V
3.3V
GND
5.0V
GND
5.0V
GND
5VSB
(Connectors)
III. INSTALLATION