A high-pitched noise from your power supply can be caused by a number of reasons, including worn-out or loose bearings in the fan, a faulty or dying fan motor, or even a buildup of dust and debris inside the power supply. The beeping occurs because power supplies have a small internal speaker that provides audible alerts about the status of the unit. The fact that you continued using a PSU after a burning smell is extremely concerning. A PSU should never have a burning. My specs are a full custom water loop on i5 8600k, z370 aorus gaming 3, 16Go ddr4 3466, and a vega 56 so i dont think i use too much power and the psu is on auto mode for the fan because the fan is vibrating too much when Always on (no OC but i blocked the adaptive auto voltage @1. 040mv MAX). Utilized a Power Supply Tester on my Apevia Prestige 800W PSU, and it keeps beeping, flashing the Power Good (PG) Value. The Power Good Value is either 160ms or 170ms, so this is a passing grade. A passing grade is 100ms -500ms. Additionally, I used this PSU tester on 2 other power supplies, and. A power supply unit (PSU) is responsible for converting Alternating Current (AC) from the wall outlet to Direct Current (DC) that your computer's components can use.
