If u r mining ethereum uon claymore 10.0 miner program you can add/change oc setting in batch file as -
-cclock set target GPU core clock speed, in MHz. If not specified or zero, miner will not change current clock speed. You can also specify values for every card, for example "-cclock 1000,1050,1100,0
-mclock set target GPU memory clock speed, in MHz. If not specified or zero, miner will not change current clock speed. You can also specify values for every card, for example "-mclock 1200,1250,1200,0"
Try this once maybe works.i also dont know i didnt face this type of
problem till now
Tried the mining driver on my rx470 & rx570 both on risers, both have same issue with 0 clock speeds on GPUz, MSI afterburner and Sapphire Trixx.
Thanks for the suggestion miniminer, but it's not just clock speeds that are stuck on 0 everything else is stuck too, like core voltage etc. I'm using ether miner with 'Claymore's Dual Ethereum+Decred_Siacoin_Lbry_Pascal AMD+NVIDIA GPU Miner v9.8'. Unfortunately does not have -cclock & -mclock in batch file.
Hoping AMD will fix this issue in next release of driver. Would be awesome to get the full potential for my cards when mining.