I am looking to buy 4790k for 186 usd, I have already found the seller, my question is what is the optimal temperature the cpu should be running at at stock speed with hyper 212 turbo cooler master fan during stress test of prime95 26.6, I want to make sure it would be able to overclock so that I don't effectively buy 4790 without k, so what would be the temp range that would be considered safe to overclock with the aforementioned cooler. Thanks