reformatted computer and it's running sooo slow

Solution
We'll you really didn't give any information, so my guess would be you don't have drivers installed / updated for something.
I just recently bought parts to build a new computer, I have 8 gigs of ram from my ripjaws, an Intel CPU, and an AMD graphics card. The computer was running fine until I started to reformat and now it's dreadfully slow. No clue why.