Asus P2B-L User Manual page 34

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.
P2B-L/S/LS ATX Power Connector
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.
34 ASUS P2B-L/P2B-S/P2B-LS User's Manual