Asus A7N8X Deluxe - Manual (Page 43)

ASUS A7N8X motherboard user guide 29
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.
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 ATX Power Connector
+3.3VDC
-12.0VDC
COM
PS_ON#
COM
COM
COM
-5.0VDC
+5.0VDC
+5.0VDC
PWR_OK
+12.0VDC
+3.3VDC
+3.3VDC
COM
+5.0VDC
COM
+5.0VDC
COM
+5VSB
ATXPWR1
A7N8X ®
A7N8X SMBus Connector
SMB1
1
SMBCLK
Ground
SMBDA
T
A
+3V
FLOA
TING
IMPORTANT! Make sure that the ATX 12V power supply offers at least
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.