hi, i update my motherboard to f4y bios and now take too much problem, special to muti dont let me oc too 4.5ghz if i try 36x125 all time show me 3.5ghz any clock i set in bios 36,37,38 etc show me 3.5ghz, i read to much fórums and take some problem with x79 bios (ud3, ud4, up5),it's amazing how long they have to their users in a total neglect, as it is seeing several changes betas, plus give nonsensical answers that are drawn according to the sales bios you to realize, I mean, I buy a x79s-up5 and in spite to be top range and cost more than 400 euros at the time eat it touches that is not sold as the high midrange?, please ask a little more seriously since I bought as many not only by the quality and performance that has a product if not also for the support that is of the same, is the minimum I expect. I hope this is resolved it leaves much to be desired.