white pixels

History: I once had a problem where my pc would suddenly shut down and it turned out that my psu extension cables were faulty and so I removed them and used the original psu cables, after that incident I've been having this white flickering pixels problem on my monitor. Kindly watch: View...

I am building a new PC that I hope to use for some light gaming (skyrim,minecraft,cs:go,dota 2). I will be running Ubuntu 14.10. Here is the pcpartpicker list: http://pcpartpicker.com/p/B2wcNG