I had this CPU oced to 4.6ghz before I installed windows. I had windows 10 installed but I wanted to try windows 7 ultimate so i gaved it a shot, works perfectly fine , with stock settings (3.9ghz) if i even oc it to 4ghz there are stutters. As i said i had it oced to 4.6ghz with no problems temps were more than ok. I really don't want to do a clean install of windows 7 again because its a pain in the .... if this is the last thing im gonna do im gonna upgrade to windows 10 again because its way easier.
