Mainboard KM51PV-754
Power Supply Attachments
ATX Power Connector: ATX_PWR, ATX_12V
This mainboard provides two ATX power connectors, a 24-pin ATX_PWR connector and a 4-pin
ATX_12V connector. You must use a power supply that has both of these connectors and
both connectors must be attached before the system is powered on. These power connectors
support several power management functions such as the instant power-on function. The
connector pins are described below.
Pin
Assignment
Pin
Assignment
1 +3.3V
13 +3.3V
2 +3.3V
14
-12V
3 Ground 15 Ground
4 +5V 16 PS_ON
5 Ground 17 Ground
6 +5V 18 Ground
7 Ground 19 Ground
8 PW_ON 20
-5V
9
+5V standby voltage
21
+5V
10 +12V 22
+5V
11 +12V 23
+5V
ATX_PWR
12 +3.3V 24 Ground
Pin
Assignment
Pin
Assignment
1 +12V 3 Ground
ATX_12V
2 +12V 4 Ground
Attention
In general, power cords are designed and should be attached with a
specific direction. The black wire of the power cord is Ground and
should be attached onto the header location of Ground.
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