Why is my power supply hissing?
The hissing noise is a bad sign and means that the power is not stable and could be potentially dangerous to the rest of your PC. I suggest replacing it straight away. as trying to fix the problem would need extensive knowledge in electronics especially in AC/DC Conversion and understanding how each channel is split.
Why is my PC hissing?
The sound is probably coming from your new motherboard. Just like any 110V transformer, or especially those large utility high-voltage transformers usually have a humming/hissing sound, the small capacitors, transformer coils and other components (even your CPU) on your motherboard can have a humming/hissing sound.
How do you fix a coil whine on a PSU?
How to fix coil whine
- Return/replace the component under warranty.
- Wait a while.
- Limiting the framerate.
- Changing fan speeds.
- Power limiting, overclocking, underclocking and undervolting.
- Moving the computer further away.
- Securing the inductor coils.
- Insulating the PC with sound dampening foam.
Why does my air conditioner make a hissing noise?
Since the pressure inside the copper tubing is high, when refrigerant escapes it makes a hissing noise (think of air escaping a balloon). To learn other signs you may have a refrigerant leak, read our article, “How to Tell if Your Air Conditioner Needs More Refrigerant (Freon).”
Why do some AC adapters and power supplies make a whining noise?
Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-driven grouping of Q&A web sites. Photo courtesy of Bart Everson (Flickr). SuperUser reader Rishat Muhametshin wants to know why some of his AC adapters and power supplies make a whining noise:
How can I get my AC to stop making noise?
If you’re willing to part with a few Benjamins, you can assure yourself of pristine AC without ground-loop noise by using an online UPS (uninterruptible power supply) or an isolation transformer. An online UPS is a battery-backup system whose battery is always engaged (online) between the input AC and the output AC.
Why is my phone charger making a high pitched buzzing noise?
Most power conversion devices contains coils, such as transformers or inductors. These components use electromagnetism to convert AC main power to low-voltage DC power. The varying magnetic fields generated by these components can cause them to physically vibrate at high frequency, resulting in a high-pitched noise.