Crazy stuff, my single RX580 get recognized as two RX580 GPUs. and mining at 12MH/s each,
while fan stays at 0 rpm, until it crashes due to overheating
Does anyone have latest AMD driver and latest 2004 windows 10 version, and its working well?
Probably a driver issue with two OpenCL drivers each reporting the same GPU. We had somewhat similar issue with DDU not removing the drivers completely - to be sure, please check if all Radeon GPUs are missing from the Device Manager after DDU finishes and restarts the PC (and before installing the new drivers) - you should see only the iGPU and generic "Microsoft Display Adapter" GPUs there. If there is a Radeon GPU still recognized, DDU must be started again to finish the job before installing the new drivers.
On a related note, you will need PhoenixMiner 5.1b for the latest AMD drivers 20.7.1 to work properly.