Z77 UP4 max RAM 1866mhz?

[Hartacus]

I for some reason can get my ram to go over 1866 even thought it is rated 2100. I change the ram multiplier and no matter what I make it CPUz always says 933. Any ideas what is going on? Does the board have some type of lock or something?

[Scracy]

Have you tried to  enable xmp profile?

[genghisquan]

If XMP isn't allowing you to run at the rated specs, then try manually entering in the freq., & timings.

[joemamasan]

i have the X79-UP4
i had all kinds of trouble getting the board to run at 2133mhz
believe it or not, the only way i could get ram frequencies to stick is to use the Easytune program
once i set it, i saved a bios profile and could restore it without Easytune installed
its a rather bizarre thing :p

good luck