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ASUS K8V-MX Motherboard 1-23
6. ATX power connectors (20-pin ATXPWR, 4-pin ATX12V)
These connectors are for 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 fit completely.
5. CPU and chassis fan connectors (3-pin CPU_FAN, CHA_FAN)
The fan connectors support cooling fans of 350mA~740mA (8.88W max.) or
a total of 1A~2.22A (26.64W max.) at +12V. Connect the fan cables to the fan
connectors on the motherboard, making sure that the black wire of each cable
matches the ground pin of the connector.
Do not forget to connect the fan cables to the fan connectors. Insufficient air
flow within the system can damage the motherboard components. These are
not jumpers! DO NOT place jumper caps on the fan connectors!
• 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 300 W, or 350 W for a fully configured system.
The system can become unstable or will not boot up if the power is
inadequate.
K8V-MX
R
K8V-MX Fan connectors
CPU_FAN
CHA_FAN
GND
Rotation
+12V
GND
Rotation
+12V
K8V-MX
R
K8V-MX ATX power connectors
ATXPWRATX12V
+12V DC
GND
+12V DC
GND
+3.3VDC
-12.0VDC
GND
PS_ON#
GND
GND
GND
-5.0VDC
+5.0VDC
+5.0VDC
PWR_OK
+12.0VDC
+3.3VDC
+3.3VDC
GND
+5.0VDC
GND
+5.0VDC
GND
+5VSB