Hey, how are you guys doing? I bought a 2017 5k iMac Mid Tier model a few weeks ago. 3,5 i5 CPU 8GB RAM The fan is pretty loud. Way above normal. I used thhe imac for a total of 7 hours maybe and theres already an electric buzz sound coming along with the fan noise. Unable to return it because didnt buy from apple directly and original seller says fan noise is normal....... long story short: For now I am stuck with it and my only hope of getting my money back or a replacement is going to an apple store again and showing them exactly that this fan noise is way too loud. I have different iMacs at my workplace and they are alot quieter. I measured the fan noise of my iMac with an App called "Decibel 10" on my iPad Mini 2. The room noise without the iMac running, blinds shut, no light, doors closed and only a clock ticking is 31.5 - 33.5 dB Room noise (measured from same distance which is about 8inches / 20cm from the iMac) with iMac running, no apps running, just logged in and nothing else is 34.8 - 36.9 dB Noise level measured from behind the iMac (4inches / 10cm from fan) is 67.4 - 72.9 dB Can anyone tell me or measure dB levels himself if this is loud or normal? Thanks in advance!