The brief message from PSU upon startup indicates nothing unusual; no immediate concerns.
The brief message from PSU upon startup indicates nothing unusual; no immediate concerns.
My PC occasionally produces a buzz when it powers on, lasting only a second or two at most. It doesn’t happen consistently either. I’m unsure what’s causing it and feel uncertain. Should I be concerned about the brief nature of the noise? Nothing else seems faulty, and it was assembled less than a week ago, so I don’t think a failure is imminent.
Maybe a little feedback as the fans start spinning up....
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Please update your post with complete system details. Add full hardware specifications, operating system info, PSU make and model, wattage, age, condition (original, build, refurbished, used), disk drive information, and list of connected peripherals. Also clarify whether the network is wired or wireless. More information would be helpful.
Psu: Montech century II, 850w
Disk: 1tb m.2 ssd (approximately half full)
Mobo: MSI B650 ATX Gaming plus wifi am5
Monitor, keyboard and wireless mouse
Wired ethernet link
It seems like you're hearing fan noise, possibly due to blades touching metal parts or a stray wire. Some impeller axles show a lot of movement, shifting up or down a few millimeters. When the fan starts, the blades might press against an obstruction. As it spins faster, the impeller moves slightly into its proper position, clearing the blockage. This shouldn't occur in a standard PSU.
If you place the computer on either side and listen at power-on, you might hear the noise. You could even try flipping the case upside down and turning it on. If the sound disappears, it supports the idea that gravity is pulling the impeller down to touch something.
In certain PC setups, I've installed an ATX PSU in a case with the power supply facing up. It's not always easy to wire, but it might help reduce the noise.
Be careful—don't attempt DIY repairs inside ATX PSUs, as there are serious safety risks. If the problem continues, contact the manufacturer via RMA or take the unit to a repair shop. Fixing it usually takes only a few minutes.
Avoid risky actions like those a friend did when young; he injured himself and still flew over the Everglades. Stay cautious.