Good luck with finding a Z77 mobo that's worth the price now. Apart from being highly sought after by indo-asian markets, most of the mobo's from that Era have suffered either cap failure and been junked, trashed by bad oc/cheap psus or blown up by users doing stupid stuff like balancing their coffee mug on top of the pc. Replacing a mobo now with a cpu upgrade from lga1155 just so as to save on ram costs is pointless. Average cost of $150 for a 3770k and pretty much the same for a good Z77 with a questionable lifetime, vrs $180 for an i5-8400 and $80 for a b360 is in my book a no brainer.