Asus A7V333 User Manual page 48

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.
A7V333
A7V333 ATX Power Connectors
14) SMBus Connector (5-1 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.
A7V333
A7V333 SMBus Connector
36
Make sure that the ATX 12V power supply (minimum
+12.0VDC
PWR_OK
®
®
ATXPWR
Pin 1
+5.0VDC
+5VSB
+5.0VDC
-5.0VDC
COM
COM
+5.0VDC
COM
COM
COM
+5.0VDC
PS_ON#
COM COM
+3.3VDC
-12.0VDC
+3.3VDC +3.3VDC
SMB
1
Chapter 2: Hardware information