I was about to flash the modded bios for my RX470 (knowing that I have Samsung memory I presumed that the manufacturer was Gigabyte) but after running SRB Polaris, I found out that my card is a Sapphire but with Samsung memory!

@Mattthev being very helpful, will upload in the coming days a modded BIOS for this version of RX470 Sapphire with Samsung memory in https://mining-bios.eu