Recently I would boot up my pc and one of my case fans begins making an awful sounding rattling noise. (best way I can put it). It sounds to me like something may have come loose in it. Another possibility being a dry bearing or something I read. The sound stops after a couple of minutes and seems to fix itself but I want to know if it's okay to continue booting up the pc with the fan acting like this. I believe they're QL Corsair rgb fans, 120mm