Hello guys, I just got my brand new rMBP 13" (Mid 14). I'm very happy so far but I noticed one thing I'm not sure if it's normal. My rMBP is absolutely silent, no fan noise or anything but sometimes there is a very quiet rattling. It's hard to describe. It sounds a little bit like when the old HDD's loaded something and you could hear it. I'm note sure if my old MBP 2010 (upgraded with an SSD) did the some noise because there was always a very quiet fan noise which maybe overlaid this noise. I just wanted to ask if this is normal or if I should check for a replacement within the first 14 days. Thank you very much in advance.