34
ASUS P2B-L/P2B-S/P2B-LS User’s Manual
Connectors
III. INST
ALLA
TION
III. INSTALLATION
23. ATX Power Supply Connector (20-pin ATXPWR)
This connector connects to a 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 but gently making sure that the pins
are aligned.
R
P2B-L/S/LS ATX Power Connector
+3.3V
olts
-12.0V
olts
Ground
PWR Supply On
Ground
Ground
Ground
-5.0 V
olts
+5.0 V
olts
+5.0 V
olts
Power Good
+12.0V
olts
+3.3 V
olts
+3.3 V
olts
Ground
+5.0 V
olts
Ground
+5.0 V
olts
Ground
+5V Standby
IMPORTANT: Make sure that your ATX power supply can supply at least 10mA
on the 5-volt standby lead (5VSB). For motherboards with the onboard LAN
chipset, your ATX power supply must supply at least 720mA to the +5Volt
standby power. You may experience difficulty in powering on your system if
your power supply cannot support the load.
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