ECS P55H-AK, Manual

Page: 33 / 88

27
Installing the Motherboard
PWR_FAN: FAN Power Connector
Pin Signal Name Function
1
GND
System Ground
2
+12V
Power +12V
3 Sense Sensor
ATX12V: ATX 12V Power Connector
Pin Signal Name
4
Ground
3
Ground
2
Ground
1
Ground
Pin Signal Name
5
+12V
6
+12V
7
+12V
8
+12V
ATX4P: Auxiliary Power Connector for Graphics Interface
Make sure to connect a 4-pin ATX power cable to ATX4P; otherwise, the
system will be unstable.
Pin Signal Name
4
+12V
3
GND
2
GND
1
NC
ATX_ POWER: ATX 24-pin Power Connector
Pin Signal Name Pin Signal Name
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
PWRGD
20
-5V
9
+5VSB
21
+5V
10
+12V
22
+5V
11
+12V
23
+5V
12
+3.3V
24
Ground