Coil whine is generally harmless, but can be maddening. Due to its inconsistency, varying between components and changing behaviour under different load levels, pinpointing the source isn't always easy. Now, the developers of the popular OCCT have added a brilliantly clever new feature in version 15 designed to help you hunt down that annoying buzz.
When running the coil whine detector, OCCT v15 (via Tom's Hardware) deliberately modulates the system's power load to force the coil whine to emit one of three predefined “tunes”. Transforming the constant, high-pitched noise into a recognisable pattern makes the whining component stand out dramatically from the background noise.
This technique exploits the nature of coil whine itself, as the noise often changes in pitch or intensity depending on the power flowing through the component's electromagnetic coils. It's why you usually only notice it during gaming, especially when hitting extremely high frame rates where power draw fluctuates rapidly. OCCT is essentially making your components sing their annoying song on command.
In addition to the coil whine detector, OCCT V15 also introduces new skins, an improved 3D Adaptive test with enhanced error detection efficiency, and the stable release of its new storage test and benchmark.
KitGuru says: For most home users in a quiet room, simply listening is often enough to identify the culprit. However, this new OCCT feature could be invaluable for system builders, repair shops, or anyone trying to diagnose a PC in a loud environment, helping confirm whether that annoying sound is just coil whine or something else.
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