Hi, I have SG 1TB drive in my iMac and it's really ANNOYING. I see that Apple says that this is ok and HD should make noise. I know that HD should make noise but when I use Safari I always hearing this "PAK PAK... PAKPAKPAKPAK... PAK PAK". I sent feedback to Apple but it's seems that no one there care, they should allow AAM the the hard drive long time ago or fix this problem by different way. P.S, SG has firmware update for this but we can't install it because our HD is Apple OEM Now I ask you what more can we do? It's really annoying to write a work on computer that make "PAK PAK" every second..