I have a Compaq CQ3430AN that is solely used for Uni and a separate gaming PC that cannot be upgraded. So i was looking at gutting the Compaq and replacing/rebuilding it to my gaming specifications. I know that I cannot just replace certain components but looking at the cost effectiveness of buying new..... yeah so not worth it! Will it be worth it? What would I need to replace? main gaming is RPG (DA Inquisition, Witcher iii)