Asus A7V266-M User Manual page 44

13) Power Supply Connectors (20-pin block ATXPWR)
This connector supports an ATX 12V power supply. The plug from the power
supply fits in only one orientation. Push down firmly ensuring 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-M
A7V266-M ATX Power Connectors
14) 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 multi-device bus that
permits multiple chips to connect to the same bus and enable each one to
act as a master by initiating data transfer.
®
A7V266-M
A7V266-M SMBus Connector
32
Make sure that the ATX 12V power supply (minimum
+12.0VDC
+5VSB
PWR_OK
COM
+5.0VDC
COM
+5.0VDC
COM
+3.3VDC
+3.3VDC
SMB_COM
1
Chapter 2: Hardware information
ATXPWR
Pin 1
+5.0VDC
+5.0VDC
-5.0VDC
COM
COM
COM
PS_ON#
COM
-12.0VDC
+3.3VDC