10 months ago
Ever since installing a new motherboard and CPU, I can hear this high pitched whistling sound coming from my case. It is not extremely loud, but is noticeably annoying since this was not present before. It doesn't sound like coil whine, and seems like it comes from the CPU cooler (stock cooler - Stealth). So, is it possible that the CPU cooler is faulty, and how can I diagnose this issue? Thanks.