Hi all.I think i have a problem.When i bought my mini i could barely hear it but now things have changed. The things is that my fan is showing rpms about 1200-1500 which i think is normal, so i think it's the HDD. Is it possible even though it's 5400 rpm and apple hard drives are generally silent. Also when i put my head close to the mini i can hear some strange metal noise. I can't explain it but you know that HDDs have some things inside which are spinning. Other than that everything works normal which i find strange ... My mini is still under warranty so if i take it to my local store would they change it, even though the HDD is working .. well at least it's still not crashed.