I need some help, I have not built a new pc for several years, just up graded one i got, well I want to start fresh with a whole new system. I currently have a Geforce GTX 1070, intel 4770K, 16 gigs of idk what ram. and windows 7, also a expensive CPU liquid coolerand a big server case. My pc currently lags occasionally and freezes. it drives me nuts, stutters in games. I have $1000 budget to upgrade it or just start over? any suggestions.