Asus A7V266-EX User Manual page 38

3. HARDWARE SETUP
15) Power Supply Connectors (20-pin block ATXPWR)
This connector connects to an ATX 12V power supply. The plug from the power
supply fits in only one orientation because of the different hole sizes. Find the
proper orientation and push down firmly making sure that the pins are aligned.
IMPORTANT:
recommended wattage: 230W) can supply at least 10mA on the +5-volt standby
lead (+5VSB). The system may become unstable and may experience difficulty
powering up if the power supply is inadequate. For Wake-On-LAN support, the
ATX power supply must supply at least 720mA +5VSB.
A7V266-EX
A7V266-EX ATX Power Connector
16) SMBus Connector (5-1 pin SMB)
This connector allows you to connect SMBus (System Management Bus) devices.
SMBus devices communicate by means of the SMBus with an SMBus host
and/or other SMBus devices. SMBus is a specific implementation of an I
a multi-device bus that allows multiple chips to connect to the same bus and
enabling each one to act as a master by initiating data transfer.
A7V266-EX
A7V266-EX SMBus Connector
38
Make sure that the ATX 12V power supply (minimum
+5V Standby
Power Good
R
R
ASUS A7V266-EX User's Manual
+12.0Volts +5.0 Volts
+5.0 Volts
-5.0 Volts
Ground
Ground
+5.0 Volts Ground
Ground Ground
+5.0 Volts Power Supply On
Ground Ground
+3.3 Volts -12.0Volts
+3.3 Volts +3.3Volts
SMB_COM
1
2
C bus,