How to OC 5820K to 4GHz?

I may start to say sorry about a lot of questions here, but I want to do it right from the start :)

Moving from a 4930K@4GHz to a 5820K I want to keep the same performance at least :)

With my 4930K all I did was change multiplier to x40 and everything else on auto.

With the 5820K what kind of multiplier can I set before touching the Vcore ?



I would like to get 4GHz out of the cpu, and from I have read and heard 4GHz should be doable at 1.15vcore ?



When changing Vcore manually will it automatically adjust to the Mhz frequency ? I am interestet in power saving so when I don't need 4Ghz the cpu will downclock and then the vcore also reduces. Do I need to set something with offset or something. With the 4930K I never set the vcore manually since I didn't know how to make it drop when the cpu ran at lower Mhz.



As for cooling I am using a Phanteks ph-tc12dx air cooler with 2x120mm push/pull :)



Thanks for helping out :)



NB!! Please don't comment that the move from X79 to X99 is stupid - I already got the parts except the case (arrives monday) :( I got my reasons and one is that I need more sata 3.0 ports than the two I currently have.

How to OC 5820K to 4GHz?