HDD Toshiba DT01ACA 500GB, 7200rpm, 32MB cache, SATA III 3 years old and this year was just gathering dust , haven't used it because I needed a new motherboard. I bought an ASUS A68HM motherboard and the HDD makes a clicking noise like it's loading something then makes another noise and repeat. I'm afraid to leave the PC on because of this noise. What could it be? There is no dust. Also the HDD gets really hot, really fast. I touched it and after a few seconds was really hot. I doubt it's a dying HDD because it worked just fine in the past.. and it's not that old.