Originally Posted by Praz
Using a 5820K with all 3 PCIe x16 slots occupied will still allow the use of the M.2 slot. However, as noted above a 5930K would be a better option for future use of additional x16 PCIe slots
A single kit of 32GB 2800MHz memory will most likely work at the stated specs but may require some manual tuning. The downside to both 2800MHZ and 3000MHz memory speeds is the likely need to use the 125 strap instead of the 100 strap. Using the 125 strap requires offset voltage mode for the CPU for any type of Speed Step function as adaptive mode only work with the 100 strap. Mixing memory kits is never a good idea as the kits are binned for use as sold. If 64GB of memory is desired it should be purchased as a single kit with the assumption that 2400MHz may be the max obtainable stable speed.
the kits are of the same speeds and cl timings , no i dont want to go towards the 5930k as i was on a allreadt tight budget hence i went for the 5820k , i plan to tri fire with 3 r9 390 8gb each and add a m2 drive at a later stage .
the set up will have 16gb @ 2800mhz ram .
i have a 5960x set up with rampage v for which i wanted to do 64gb so what ur saying is i hve to mannually adjust the voltages for it to work correctly i dont plan to over clock the rams as 2800mhz is allready enough for me.
i want to install 4 sticls of 8gb each for a total of 32gb ram with the 5960x before i had 8 dimms of 4gb each @2400mhz crucial balastic rams .
will just slecting the xmp profile help or do i have to manually adjust the votlages of the ram etc .