Hello. I own a z370p d3 motherboard, i5 9600k and have adata xpg 01 2400 mhz ram 16 gb.

I used XMP to overclock my ram speed and got to 2800 mhz. How do I know if the system is stable?

The only thing I got later yesterday afternoon after I oc'd was that my keyboard and mouse were not working as usual.

Is it related to this? How many mhz do I actually need?

First time overclocking something, could use some help. Thank you in advance!