Right now I'm using a simple rosewill cooler but I'm planning on getting a Corsair h100x soon. My motherboard is an Asus Maximus iv gene zThe exact voltage needed isn't the same for every 2600k.
What cooler and motherboard are you using? You could probably aim for 4.5ghz or more if you have a good cooler.
Right now I'm using a simple rosewill cooler but I'm planning on getting a Corsair h100x soon. I won't be playing any intensive games until then. My motherboard is an Asus Maximus iv gene z