ECS A740GM-M User Manual
11
Installing the Motherboard
CPU_FAN: Cooling FAN Power Connector
Users please note that the fan connector supports the CPU cooling
fan of 1.1A~2.2A (26.4W max.) at +12V.
fan of 1.1A~2.2A (26.4W max.) at +12V.
1
GND
System Ground
2
+12V
Power +12V
3
Sense
Sensor
4
PWM
CPU FAN control
Function
Pin Signal Name
ATX12V: ATX 12V Power Connector
ATX_POWER: ATX 24-pin Power Connector
1
+3.3V
13
+3.3V
2
+3.3V
14
-12V
3
Ground
15
COM
4
+5V
16
PS_ON
5
Ground
17
COM
6
+5V
18
COM
7
Ground
19
COM
8
PWRGD
20
-5V
9
+5VSB
21
+5V
10
+12V
22
+5V
11
+12V
23
+5V
12
+3.3V
24
COM
Pin Signal Name Pin Signal Name
SPK: Internal speaker
Pin
Signal Name
1
VCC
2
Key
3
NC
4
Signal
SYS_FAN: FAN Power Connector
Pin
Signal Name
Function
1
GND
System Ground
2
+12V
Power +12V
3 Sense Sensor
4
+12V
3
+12V
2
Ground
1
Ground
Pin Signal Name