Please modify following BIOS settings, then you should be able to get memory frequency back to 2133:
§ Advanced >> Chipset Configuration >> North Bridge >> Memory Configuration >> Enforce POR -> Disabled (default Enabled)
§ Advanced >> Chipset Configuration >> North Bridge >> Memory Configuration >> Frequency >> 2133 (default Auto)
Soft remind, there is no guarantee for this function, since it's not follow Intel POR.
意思就是Enforce POR -> Disabled (default Enabled) 把这个关闭了,然后把主频进内存主频设置在2133,F4保存即可~当初256G这么设置工作没出问题