![]() This is sometimes the case of bad soldering of an inductor coil, but it is not always the issue. Older motherboards used bigger open style inductors (far right), and these types are still prominent in power supplies.Īs power runs through the coil it vibrates and causes the noise we all find irritating. In the case of modern hardware applications (GPUs and motherboards), they are usually housed in little boxes (far left), and they consist of a thick copper wire coiled around a ferrite core. So, you should be able to identify them quite easily, but let’s break them down a bit, literally, for a better understanding of them.Ī choke is an inductor designed specifically for blocking high-frequency alternating current (AC) in an electrical circuit while allowing direct current (DC) or low-frequency signals to pass. We already mentioned chokes, aka inductor coils when we were first discussing MOSFETs and power delivery systems of motherboards in one of our earlier blog posts “ What are MOSFETs and why you should keep them cool?“. This happens in almost all electrical devices, usually at a frequency and volume that’s inaudible to humans, especially inside a case. In some cases, you can hear the pitch of the coil whine change as the GPU draws more or less power, especially often at very high framerate situations. When you hear cricket like high pitched irritating noises coming from your graphics card (GPU), less often from power regulation modules (VRM) of motherboards and power supplies (PSUs), that is coil whine. ![]()
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