RAM set faster than the CPU supports?

[Andrewthegreat]

I have a 1x16GB stick of Kingston hyperx fury RAM @2400mhz.
My CPU, the Intel i3-6300, and my motherboard, the ASUS B150 PRO GAMING/AURA, claim to only supports 2133mhz.
When I put the system together, the RAM defaults to 2133mhz, and everything runs smoothly.
I noticed in the BIOS there was a option to increase the speed of the RAM to 2400mhz or even higher. What would happen if I set my RAM to 2400mhz?

Thanks in advance.

 

[raisonjohn]

It would probably run (downclock) only in 2133MHz speeds, since you are using an i3-6300 (a 6th-gen CPU) on a B150-chipset mobo.

From CPU: https://ark.intel.com/products/90731/Intel-Core-i3-6300-Processor-4M-Cache-3_80-GHz
Memory Types: DDR4-1866/2133, DDR3L-1333/1600 @ 1.35V

From motherboard: https://www.asus.com/Motherboards/B150-PRO-GAMING-AURA/specifications/
* Due to Intel® chipset limitation, DDR4 2400MHz memory frequency is only supported by 7th Generation Intel® processors. Higher memory modules will run at the maximum transfer rate of DDR4 2400MHz.
** Due to Intel® chipset limitation, DDR4 2133MHz and higher memory modules on 6th Generation Intel® processors will run at the maximum transfer rate of DDR4 2133MHz.

 

[Isokolon]

really depends on the Mainboard as well. if it's a Z board you can use faster RAM
however with 6th generation Intel CPUs RAM speed literally doesn't matter.