MSI MEG Z390 ACE User Manual - Page 38
CPU_PWR1~2, ATX_PWR1: Power Connectors, V-Check Points
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CPU_PWR1~2, ATX_PWR1: Power Connectors These connectors allow you to connect an ATX power supply. 8 5 CPU_PWR1/ CPU_PWR2 4 1 1 Ground 5 2 Ground 6 3 Ground 7 4 Ground 8 +12V +12V +12V +12V 1 +3.3V 13 2 +3.3V 14 3 Ground 15 12 24 4 +5V 16 5 Ground 17 6 +5V 18 ATX_PWR1 7 Ground 19 8 PWR OK 20 1 13 9 5VSB 21 10 +12V 22 11 +12V 23 12 +3.3V 24 +3.3V -12V Ground PS-ON# Ground Ground Ground Res +5V +5V +5V Ground Important Make sure that all the power cables are securely connected to a proper ATX power supply to ensure stable operation of the motherboard. V-Check Points These voltage checkpoints are used to measure the current system voltages. A multimeter (not included) will be required to check voltages. To measure voltage, place test leads on the GND (screw mounting hole) and a V-Check Point. Please refer to the manual of your multimeter for more information. PCH VCCIO VCCSA DDR CPU 38 Overview of Components