Hello there, is Asus H97M-E good enough to mantain turbo boost of 4790k(4,4GHZ)? And I have a intel stock cooler from i5 4460, is this cooler good enough for the turbo or I need to buy an aftermarket cooler? Thanks!
The motherboard should have enough power to handle overclocking the 4790k. As for the stock cooler, I'd recommend replacing it. You don't need anything fancy, but definitely something better than the stock if you're gonna overclock.
Because the motherboard is an h series motherboard, you won't be able to overclock the i7 4790k.
The i7 4790k does not come with a stock cooler because stock coolers cannot adequately dissipate heat from that processor even under stock frequency and load. You will have to get an aftermarket cpu cooler.