Hoodorm, we would recommend customers to use the correct memory on their system in order to avoid any problem on the future.
The use of memory out of specification could damage the processor. As you mentioned it on your post, this processor supports memory up to 2133 Mhz DDR4.
Even though Intel makes unlocked and Extreme Series processors that are robust enough to handle customizations, Intel doesn't recommend over
clocking any of their internal components (memory, video or CPU) and there is no warranty support for that practice.
Usually, using memory out of specifications will decrease the lifetime of the processor and it could generate processor damage, however you are free to configure the memory settings manually in BIOS.