I'd have my rig in 7 months now, and after i got my 144hz monitor it began to make some kind of buzzing noise. I tested all the parts in my pc to find out where the noise came from here. It was coming from my GPU but when I switched with another card I had it made the same noise. It's only there when playing demanding games and disapereas in the pause menu or when the pc is idle so have no idea what the problem is.
Coil whine from my GPU or what.
- Thread starter KHansen
- Start date
Solution
techgeek
Splendid
- Apr 11, 2004
- 5,297
- 9
- 29,965
Often coil whine is aggravated by high framerates. Usually when VSYNC is turned off, or in your case with higher than "normal" refresh rates. Try using a refresh rate of 60Hz and see if the coil whine goes away. If it does, then it's definitely coming from the GPU.
In and of itself, coil whine isn't bad, it's just annoying. It can't damage anything, and it's not going to hurt your card.
In and of itself, coil whine isn't bad, it's just annoying. It can't damage anything, and it's not going to hurt your card.
techgeek
Splendid
- Apr 11, 2004
- 5,297
- 9
- 29,965
The physics behind coil whine is based on magnetism. A coil of wire is wrapped around a ferrite core which is affected by magnetic fields, and the coil creates a magnetic field around it when current flows through it. Technically it's a DC current, but since it's amplitude is always changing, there is an AC component to it. If the current were constant, there would no coil whine. What causes the whine is the changing current causes the magnetic field to expand and collapse in proportion to the instantaneous current flow. This can cause the coil or the core to vibrate (physically move) which is what you hear. There are coils now that are epoxied into a plastic shell to keep this vibration from occurring.
The reason why VSYNC can reduce this is that you limit the framerate to a consistent value which in turn reduces how much the current flow changes. The more constant the load, the less you'll hear coil whine.
The reason why VSYNC can reduce this is that you limit the framerate to a consistent value which in turn reduces how much the current flow changes. The more constant the load, the less you'll hear coil whine.
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