Smoke from iMac

Well, here's something interesting. While installing Yosemite there was the sound of something frying (seriously) and a small puff of smoke from the bottom right of my 2014 27" iMac. But I didn't find a hot spot anywhere on the machine and when Yosemite finished installing everything is running just fine. I thought maybe it was my HD but I did a verify disk and its OK. Obviously the power is working OK (I'm typing on it as we speak). Or maybe I had a seniors moment and imagined it all . . . Thoughts? Bobby

via ehMac.ca http://ift.tt/1plqlmw