Just thought I would post about my bad experience with yate loon fans. I built up six different computers with those D80SM-12 80x80x25 ball bearing 27CFM 29DBA yate loons in them with Aopen cases and after about a month or two of somewhat light use(systems only on for a few hours at a time each day) those fans are bussing really loud. You could swear there are a bunch of motorcycle or jets running in the room now with all these systems. I was wondering if anyone else has had similar experiences. Anyways I wound up buying all new panaflows to replace those things and finally some piece and quite 🙂