How do I use proprietary drivers on my Toshiba laptop? Fan makes noise!

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http://ubuntuforums.org – Hello everyone, This is my very first post, and I am still very new to Ubuntu 12.04. My fan makes a lot of noise while the temperature is just 36 degrees. It almost immediately starts ventilating, also when I don't run any application at all. So I've read a few posts on this forum and it seems to be a regular problem having to do with getting the right drivers. My question is how do I solve this? As already said before, I'm not yet very familiar with things like sudo and all of that... My computer is a Toshiba Satellite L300D-01N Laptop Computer - AMD Athlon 64 X2 Dual-Core QL-60 1.9GHz. (Hardware)