Sigh...
I would suggest returning that power supply if you can. Cooler Master isn't a great brand when it comes to power supplies, but it might have been alright if it was an 80 PLUS BRONZE certified model. But it's not. You NEED to get a good quality power supply. As I stated above, there is more to it than just wattage.
Looking online, that power supply goes for $55. You would easily be able to get much better one for around that price. Here are some examples:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139028
http://www.newegg.com/Product/Product.aspx?Item=N82E16817151096
Both of those are superior, since they are a better brand, are BRONZE certified, and both have better amps on the 12V rails. Please listen to us on here, as opposed to some tech from a random store. We are just trying to make sure you buy something that will last and won't damage your PC.