I have Acer Nitro 5 AN515-53-52FA and one of the fans was making horrible noise. Using the NitroSense app I determined it was a problem with the GPU fan. I opened the case, sure enough it was very dirty. But cleaning it did not resolve the noise problem. I took a chance and decided to disconnect the GPU fan. It worked out beautifully, the CPU fan is sufficient to keep the laptop cool and quiet. Temperature stays about 72c on CPU and 46c on GPU. However please do not disconnect both fans, I tried it briefly and the CPU will overheat and shutdown.