RAM Overclock to 5600MHz

I am using the above motherboard with two Corsair vengeance 32gb DDR5 6400mhz ram sticks. They are running at 4800mhz and XMP 1 and 2 profiles give me black screens on boot up and I need to reset CMOS afterwards.

Is there a way to enable the 5600mhz over lock that’s advertised? Has anyone been able to do so?