Question No power to new build ?

Sep 20, 2021
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First timer building a PC for son. Had trouble with power when connected all parts. Did the screwdriver test and no power on mother board. Replaced motherboard, PSU, and CPU.

Tested new PSU (ARESGAME AGV650 Bronze) and fan moved worked just fine.
Connected new CPU (AMD RYZEN 5 5600G w/Raiden Graphics) and power to motherboard ASUS ROG STRIX B550-F. Did screwdriver test and RGB lights and CPU fan worked just fine.

completed full installation. Turned on PSU and RGB light came on but fan on PSU doesn’t move. Hit power button on case and all internal case fans rotate for a second and stop. CPU fan never moves.

disconnected PWRSW and tried screwdriver test again. This time nothing worked.

what do I do?