Asus A7N8X Series User Manual page 43

15) Power Supply Connectors (20 pin block ATXPWR1)
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!
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.
A7N8X
®
A7N8X ATX Power Connector
16) 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.
® A7N8X
A7N8X SMBus Connector
ASUS A7N8X motherboard user guide
Make sure that the ATX 12V power supply offers at least
ATXPWR1
+3.3VDC
-12.0VDC
COM
PS_ON#
COM
COM
COM
-5.0VDC
+5.0VDC
+5.0VDC
SMB1
1
+3.3VDC
+3.3VDC
COM
+5.0VDC
COM
+5.0VDC
COM
PWR_OK
+5VSB
+12.0VDC
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