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Power Supply only boots after days of sitting unplugged

Power Supply only boots after days of sitting unplugged
Hello! I have a Cosair CX500M that is having issues booting a PC. The system will always turn on (HDD, GPU, fans, etc.) but nothing will initialize. When the system will boot successfully, the CPU fan immediately spins up faster than it would when my PSU is having this problem. If I allows the PSU to sit unplugged for a few days it will boot up 100% of the time and remain on for days without issue. If the system shuts off and attempts to power back on it will not work. I suspect that it only boots when the capacitors are fully discharged (or close to it) and otherwise the motherboard is not receiving the Power Good Signal.

ANSWERS:

edmurphy98  here is the guide for building a discharge tool Constructing a Capacitor Discharge Tool and you discharge a capacitor by connecting the end of the tool to a different connector on the capacitor. Make sure that you do not make direct physical (could be a heart stopping experience) contact with the tool or the capacitor while you discharge it. Unplug your PSU before doing anything like that. After discharge use a multimeter to ensure that the capacitors are completely discharged

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