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34 ASUS P2B-L/P2B-S/P2B-LS User’s Manual

Connectors

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

+3.3Volts

-12.0Volts

Ground

PWR Supply On

Ground

-5.0 Volts

+5.0 Volts

Power Good

+12.0Volts

+3.3 Volts

Ground

+5.0 Volts

Ground

+5.0 Volts

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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Asus P2B-S Manuale Utente Pagina 34