Recently all of my games have been crashing, and I am getting extremely poor performance in all games (Including CSGO, Overwatch, and GTA 5). I have run synthetic benchmarks in FireStrike, and both my GPU and CPU are performing above what other people have achieved. What I do not understand is why my internet has slowed down to 700-800 kb/ps, which causes extreme lag in FPS games, and my games are crashing without warning. It just freezes up and then crashes. I have tried backing off my light 2.88GHz overclock to the stock 2.4, and that does nothing but decrease the performance. I have also tried installing different OS', Like windows 8.1 and 10, but they both blue screen, in 8.1 on startup, and in 10 whenever. I am currently running 7 which has no blue-screening issues, but I to install 7 on another HDD, and it blue screened there as well. I have tried uninstalling and reinstalling the graphics driver, and none of this has worked. I have actually gotten a decrease in performance in Overwatch, from around 40-60 to 20-30. I am using: Q6600, GTX 770 4GB Windforce, 500w EVGA PSU, WD Blue 250GB HDD, using the stock cooler, Mixed DDR2 RAM, and a random wifi card I got almost 10 years ago.