You have in mind RX OS right ?
IF you had old values like dpm level + memory OC in % then you shoudl be getting exactly the same thing as before update.
The new system is only active when you enter core and memory in MHz so
core: 300-1500
memory: 300-3000
Only then if calues are in this range , the new overclocking system kicks in.
So if you have old values then nothing should changed.
Ok so taking out the mhz in core and mem fixed the issue, leaving the default to 5 in undervolting. I went back in and reflashed all cards to be safe also