Quote Originally Posted by Ket View Post
Up to 1.65v will be safe. You should be able to get at least 1866MHz out of the kit, but it depends what ICs your kit is using I may of just lucked out with my kit being able to do 2133MHz+. If you need a little more detail about voltages Clicky

ED - Oh, and about power draw. I'm not entirely certain if the mainboard just draws X wattage specified regardless of if the CPU actually needs to draw that amount of power, but I deffinately wouldn't set long/short power limits and current limit higher than is necessary. 250/250/250 should be plenty for 5GHz @ 1.45v. You could likely even use 200/200/200 without any problems.
I don't really understand the workings of the current limit settings to be honest but mine will run a stable 5ghz with 150/150/150 at 1.4V loaded. Can anyone describe what these long/short and current settings really do?