There is a known issue to some with the audio jack getting hot. Use the search feature and it will lead you to what to do about it.
Left Fan is the CPU area.
This machine wasn't really meant to be used on your lap, nor would I use it on my lap or any non hard surface. Its not actually classified as a laptop, its a notebook.
Nothing personal brother but you seem to be quite new to the world of high power portable machines. They all have short battery run time and they all heat up to some extent and should not be placed on your lap, bed, sofa, etc unless you use a hard device such as a cooling pad.
http://www.amazon.com/Cooler-Master-NotePal-Ultra-Slim-R9-NBC-XSLI-GP/dp/B005C31HC0?ie=UTF8&tag=lapt...

“Two things are infinite: the universe and human stupidity, I'm not sure about the former” ~ Albert Einstein