Hey everyone. I have a late 2012 iMac core i7 with top specs. It's an awesome machine. I got into Folding @ Home in July and run that at full. I also use HandBrake a lot and the iMac acts as a home server hosting Mac OS X Server (files, email, backups, user accounts, wiki, etc) The iMac also obviously streams content to my AppleTV and my iOS devices via Air Video while I'm traveling. So it's on 24/7 and CPU utilization is at 100% at all times with about 20 of the 24 gigabytes of ram in Use. It's also a Fusion Drive 3TB ---- I'm a non-smoker and my ho use is pretty clean but lately the large output fan on the iMac is getting louder, almost humming at high pitch nothing annoying sort of like a wind tunnel that produces a whining sound as air is pushed really fast. I'm noticing it more and more but it's still very quiet. That fan runs 24/7 as well. Question: Am I shortening the life of my iMac by pushing it so hard? I have AppleCare and it's at the 1 year from purchase date today so I feel good just don't want to do anything that's going to break it.