How are people overclocking and undervolting Navi gpus on Windows using PhoenixMiner_5.4b and windows driver 20.12.1 ?

OverdriveNTool doesn't work past 20.4.2 , and using the miner params '-cclock 1030 -cvddc 700' doesn't work either. 

using 'cclock' and 'cvddc' , the logs show:
2020.12.12:18:55:57.470: hwmc GPU0: set GPU clocks to 1030 MHz (Vddc 700 mV)

however, checking gpuz or hwinfo or even in the miner itself (hstats 2), none of the OC values are actually applied.