welcome !!
i have :
i3-4150
avexir 8gb of ram (2x4) 1600mhz
gigabyte b85m-ds3h-a
so when i run cpu-z i find the ram running in 800mhz
so i activate the xmp profile
and checked it again and i found it is still running at 800mhz
so what i need to do to make the ram running at 1600mhz?