I5 2500K or i5 3570K they both will be running on a Intel DZ68BC, I want to Overclock my CPU to 4.5 GHz or 4.2 GHz atleast.
My friend have this board and he has OCed a i7 2600K to 5.1 Ghz stable with a Corsair H60, so you don't have to worry about that this Board cannot oc.
I will be using a Stock Cooler(5-6 months later a Corsair H60)
I also want to know that if i buy the i5 3570K do i have to update the bios to run 3570K On Intel DZ68BC?
EDIT: What are the safe temps for both of the CPUs?