4Ryan6
Champion
Does this mean I have a good chip then?
Yes you do!
Cooling has everything to do with how far you can safely overclock your CPU my 3770K with hyper threading disabled is comparable to your 3570K, but the cooling I am running allows much further overclocks and tolerable temperatures.
You need to learn where your limits are and that does not mean you don't have a great CPU, it just means you've taken it as far as the cooling you have will allow you to safely go.
My CPU has never been delidded, I had no need to do so as my cooling is more than capable of supporting the 5ghz overclock and the voltage it takes to get there, the test below was run at an 8c water temperature which was 15c below my ambient room temperature.