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Chapter 2: Hardware information
7. ATX power connectors
(20-pin ATXPWR, 4-pin ATX12V)
These connectors connect to an ATX 12V power supply. The plugs
from the power supply are designed to fit these connectors in only one
orientation. Find the proper orientation and push down firmly until the
connectors completely fit.
In addition to the 20-pin ATXPWR1 connector, this motherboard
requires that you connect the 4-pin ATX +12V power plug to provide
sufficient power to the CPU.
• Do not forget to connect the 4-pin ATX +12V power plug.
Otherwise, the system does not boot up.
• Make sure that your ATX 12V power supply can provide 12A on the
+12V lead and at least 1A on the +5-volt standby lead (+5VSB).
The minimum recommended wattage is 300W, or 350W for a fully
configured system. The system may become unstable or may not
boot up if the power is inadequate.
K8V
®
K8V ATX Power Connectors
ATXPWR ATX12V
Pin 1
+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
+12V DC
GND
+12V DC
GND