Help Overclock 5820K

Hello, this is my first overclock and I would like to know if I can get better results. Right now this is how I set up everything. I don't want to go over 4.5. I tried the voltage lower than 1.26 but the system crash. Also the input voltage can't go below 1.86. Can you tell me something about the other parameters? Is there anything that I can set up better instead of having all Auto? Thanks

For 4.5GHz try a Vcore of 1.33v use CPU-Z to see the Core voltage.

There really isn't a need to touch anything outside of Vcore for a 4.5 GHz clockspeed. The vcore isn't high enough to warrant a change to the input voltage.

Are you stable at 1.26V and 4.5GHz? I see you mention you can't boot below that, but are you stable at/above that? The name of the game is to simply use the least amount of voltage you can to be stable at a given clockspeed. With that in mind, if you are not stable in stress testing at 1.26V, then raise it up a bit. I suggest NOT 'starting over' and setting 1.33V to work your way down. Seems you may be close on the lower end.