Chosen Solution
My fans used to just sound like fans–like grey noise but now, along with the regular fans noise, there is a high pitched squeaking noise, almost like a whine. Its very, very annoying, especially when the fan runs hot. I already tried a little compressed air, and it did nothing. All help is appreciated. Thanks!
Hey mate, this issue would be the fan’s bearings. They are either not lubricated enough or dying. Try 2-3 drops of oil on the bearings, either side of the fan. If this doesnt fix it, you’ll need to replace the fan.
