Asus A7N266-VM User Manual page 41

14) 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!
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.
A7N266-VM ATX Power Connector
15) SMBus Connector (6-1 pin SMB)
This connector supports 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.
A7N266-VM SMBus Connector
ASUS A7N266-VM motherboard user guide
Make sure that the ATX 12V power supply offers at least
A7N266-VM
+3.3VDC
-12.0VDC
®
+5.0VDC
+5.0VDC
A7N266-VM
®
1
ATXPWR
+3.3VDC
+3.3VDC
COM COM
PS_ON# +5.0VDC
COM COM
COM +5.0VDC
COM COM
-5.0VDC PWR_OK
+5VSB
+12.0VDC
SMB
29