Thanks for your reply! Actually, I managed to resolve the issue myself (kind of). Turns out that my GPU was attached too tightly and made contact with some other parts, which caused a very loud clicking sound. Because this occurs even at very low GPU fan speeds, I initially thought the sound had to come from somewhere else. Additionally, the PSU fan can be annoyingly loud (as well as my disk lol), but as far as I know, there is nothing I can do about that. In case anyone else is experiencing a similar issue, here is a helpful video on the GPU fan problem. Solution for the Zotac 3060ti shroud noise - YouTube
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