Cpu_Pwr1, Atx_Pwr1: Power Connectors - MSI PRO B660M-P WIFI DDR4 User Manual

CPU_PWR1, ATX_PWR1: Power Connectors

These connectors allow you to connect an ATX power supply.
⚠
Important
Make sure that all the power cables are securely connected to a proper ATX power
supply to ensure stable operation of the motherboard.
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8 5
4 1
CPU_PWR1
12 24
1 13
ATX_PWR1
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CPU_PWR1
Pin Signal Name
1 Ground
3 Ground
5 +12V
7 +12V
ATX_PWR1
Pin Signal Name
1 +3.3V
3 Ground
5 Ground
7 Ground
9 5VSB
11 +12V
13 +3.3V
15 Ground
17 Ground
19 Ground
21 +5V
23 +5V
18
Pin Signal Name
2 Ground
4 Ground
6 +12V
8 +12V
Pin Signal Name
2 +3.3V
4 +5V
6 +5V
8 PWR OK
10 +12V
12 +3.3V
14 -12V
16 PS-ON#
18 Ground
20 Res
22 +5V
24 Ground