Asus P4PE BP - Manual (Page 30)

1-20 Chapter 1: Product introduction
P4PE BP
®
P4PE BP ATX & Auxiliary Power Connectors
EZ_PLUG1
+12V
GND
+5V
GND
ATXPWR1
Pin 1
+3.3VDC
-12.0VDC
GND
PS_ON#
GND
GND
GND
-5.0VDC
+5.0VDC
+5.0VDC
PWR_OK
+12.0VDC
+3.3VDC
+3.3VDC
GND
+5.0VDC
GND
+5.0VDC
GND
+5VSB
ATX12V1
+12V DC
GND
+12V DC
GND
4. ASUS EZ Plug™ and ATX power connectors
(20-pin ATXPWR1, 4-pin EZ_PLUG1, 4-pin ATX12V1)
These connectors connect to an ATX 12V power supply. 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.
In addition to the 20-pin ATXPWR1 connector, this motherboard requires that
you connect the 4-pin ATX +12V power plug to provide sufficient power to the
CPU.
If you are using a standard ATX power supply that does not have the ATX
+12V plug, connect one 4-pin device power plug to the ASUS EZ Plug™
connector labeled EZ_PLUG1.
Make sure that your ATX 12V power supply can provide 8A on the +12V lead
and at least 1A on the +5-volt standby lead (+5VSB). The minimum
recommended wattage is 230W, or 300W for a fully configured system. The
system may become unstable and may experience difficulty powering up if the
power supply is inadequate.
P4PE BP
®
P4PE BP SMBus Connector
SMB1
1
SMBCLK
Ground
SMBDA
T
A
+3V
FLOA
TING
5. SMBus connector (6-1 pin SMB1)
This connector allows you to connect SMBus (System Management Bus)
devices. Devices communicate with an SMBus host and/or other SMBus
devices using the SMBus interface.