Hi everyone, So- I received my 5K iMac on 2/1/14 (i7, 500 SSD, 16GB RAM and M295X), in a quiet room, I can hear the fan (1200 RPM) and it sounds... rattle-y, I guess. To give you some context of the loudness, I have a 2011 MBP with an SSD 1 ft away from me, with its fans at 2000 RPM that I can't hear, while the riMac at 2 ft away is clearly audible. Light gaming (DotA 2 at 2K res) drives the GPU to sit at 100C and pushes the fan up to 1900 RPM (which actually makes it louder than the game). Wifi connection has dropped 3 times each day. I picked up the phone to apple, explained my problems and a replacement iMac is on its way out to me after trying an SMC/PRAM reset. The gentleman I spoke to was extremely kind and courteous and agreed with me that what I'm experiencing should not be the case with this product. I'm very satisfied with the way that Apple has chosen to deal with this and would urge anyone with problems similar to the ones I've detailed to contact Apple. Fingers crossed that the replacement iMac will be problem free!