Well the instructions you quoted say Blockchain and Newer drivers. Win 7 probably want to go to win 10. Current version lolminer 1.16.
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Which ones are they? I don't understand which ones it refers to. Do you have a link to download?
You quoted the instructions for lol....in your message.....
So go to AMD site and download newest driver for Polaris cards (your RX 480 are polaris cards)
https://www.amd.com/en/supportThe scroll up through thread and see link from lol for 1.16....
It is literally 5 posts before this one....
https://github.com/Lolliedieb/lolMiner-releases/releases/tag/1.16You are right... one of the best drivers is 20.4.2, why I say this version, because it is also the last one that works perfectly with MSI Afterburner and also with OverDriveNTool... that is really helps to configure voltage of the memory cards.
Let's enjoy in 20min the autofork to ETCHASH