Assassin's Creed 3

Hi fellas, I've god Assassin's Creed III 1.02 PC game -> ... and recently I decided to reinstall with patches. Then I got this "could not retrieve version number! installation will be aborted" error and I found a solution by @thekingofclubs in here. But after that I started getting a ->...

"EVGA 500B 500W 80+ Bronze" I found this on sale and it is very cheap what I'm wondering is, if it will be worth its cheapness. Do you guys know this one? Will you recommend it or I will be at risk if I used that? And by the way I have a budget gaming build: PROCESSOR INTEL PENTIUM PROCESSOR...