How to get rid of coil whine just by tweaking BIOS
Finally. No more ringing in my ears! I had a really bad case of coil whine with my computer. In the end I fixed it just by tweaking the BIOS! The coil whine was at it's worst when the PC was idling or under a light load. Coil whine is a high-pitched sound that is produced by coils resonating at a high frequency. It is really hard to sense where exactly it's coming from. This is because humans cannot sense direction for high-pitched sounds. At first I thought it was my graphics adapter. So I bought a new used one. But the ringing was still there after the upgrade. Next up, I suspected my PSU was the culprit. So I changed the power supply to a newer 80 Plus Platinum model. I hate changing the PSU. And it didn't help. So it looked like my motherboard was the cause. It's an older ASUS motherboard, P8H67-V. After googling around a bit, I found people talking about ASUS motherboards and coil whine when power-saving features are on in the BIOS . The so-called "C-state...