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ATX_PWR1, CPU_PWR1: Power Connectors
These connectors allow you to connect an ATX power supply.
12
24
ATX_PWR1
1
13
4
3
CPU_PWR1
2
1
⚠
Important
Make sure that all the power cables are securely connected to a proper ATX power
supply to ensure stable operation of the motherboard.
CPU_FAN1, SYS_FAN1: PWM Fan Connectors
PWM Mode fan connectors provide constant 12V output and adjust fan speed with
speed control signal. When you plug a 3-pin (Non-PWM) fan to a fan connector in
PWM mode, the fan speed will always maintain at 100%, which might create a lot of
noise.
You can adjust fan speed in BIOS > Advanced > Hardware Monitor.
1
CPU_FAN1/ SYS_FAN1
1
+3.3V
2
+3.3V
3
Ground
4
+5V
5
Ground
6
+5V
7
Ground
8
PWR OK
9
5VSB
10
+12V
11
+12V
12
+3.3V
1
Ground
2
Ground
PWM Mode pin definition
1
Ground
3
Sense
13
+3.3V
14
-12V
15
Ground
16
PS-ON#
17
Ground
18
Ground
19
Ground
20
Res
21
+5V
22
+5V
23
+5V
24
Ground
3
+12V
4
+12V
2
+12V
4
Speed Control Signal
Rear I/O Panel
11
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