I am trying to overclock the ram in my PC using xmp profiles. The ram defaults to 1600 mhz and is supposed to run at 1866 mhz with xmp enabled. The PC crashes when I enabled Profile 1 (1866 mhz) in the bios. Sometimes it runs for a while before crashing. System is stable when ram is left at 1600 mhz. Should I just manually boost the ram speed to 1866 and voltage to 1.64v without turning on xmp profiles?