Ai suite oc not saving

[RushNReady]

Why isn't my Asus Ai suite 5 oc not saving it takes it all the way upto 46 on all cores showing stable through out. Then when it loads back up it all back at 39 again. Every time. What settings do I need to do In bios before doing it I have an Asus z87 pro

 

[RushNReady]

I realised I need to enable xmp mode