Atx 24-Pin Power Connector; Fan Power Connectors - ECS A770M-A Manual

CPU_FAN1: Cooling FAN Power Connector
Pin Signal Name
1
GND
2
+12V
3
Sense
4
PWM
Users please note that the fan connector supports the CPU cooling
fan of 1.1A~2.2A (26.4W max.) at +12V.
ATX_POWER1: ATX 24-pin Power Connector
Pin Signal Name
1
+3.3V
2
+3.3V
3
Ground
4
+5V
5
Ground
6
+5V
7
Ground
8
PWRGD
9
+5VSB
10
+12V
11
+12V
12
+3.3V
SPK: Internal speaker
Pin Signal Name
1
VCC
2
Key
3
NC
4
Signal
SYS_FAN1: FAN Power Connector
Pin Signal Name
1
GND
2
+12V
3 Sense
ATX12V1: ATX 12V Power Connector
Pin Signal Name
1
Ground
2
Ground
3
+12V
4
+12V
Installing the Motherboard
Function
System Ground
Power +12V
Sensor
CPU FAN control
Pin Signal Name
13
+3.3V
14
-12V
15
COM
16
PS_ON
17
COM
18
COM
19
COM
20
-5V
21
+5V
22
+5V
23
+5V
24
COM
Function
System Ground
Power +12V
Sensor
11