GA-X79-UD7 memory frequency?

[Area 51]

    Seems I cannot raise the memory frequency past 1600Mhz in the BIOS just reads 1600 ,only a slight rise with F10 when more voltage applied, XMP will not work with either profile, jacked up imc and vtt but no change, will not boot with XMP with any settings , Gskill Trident Z 2400 reads fine with memtest and runs fine at 1600, is this a BIOS problem with this board or is this memory related? old board i7 3930 but hardly used really as new? XMP does change the timings but even 2133 will not stick, anyone have any clue whats up here?I s BIOS F12f only for IB or can this be used with my processor? Thanks for any help

[Area 51]

So it seems the F11w Bios will not hold memory settings above 1600 Mhz, could not get XMP to work with F10 or F11 Bios, could be processor limitation, or still have not found correct timings and voltage settings, but managed to achieve 2133 with the F10 Bios