How to find max ram speed for my system

[reppinjerzy]

I have a Eurocom http/ with a Notebook P65_P67RGRERA mainboard, i76820hk, with 2 micron 8gb ddr4-2133. I'm wondering if my system can run ddr4-2400 or ddr4-2666 memory, eurocom says they dont know yet

 

[hang-the-9]

According to the specs for the CPU this is the supported RAM for it Memory Types DDR4-2133, LPDDR3-1866, DDR3L-1600