Sapphire Rx 480 Nitro 8gb Bios Switch

I need bios for this card sapphire nitro rx 480 8gb 11260 01 memory samsung have any up to 29mh jukebox said. The 8gb card has five gpu power phases while the 4gb one has six. Hey guys i bought a sapphire rx 480 nitro and when installing it i noticed that it has a vbios swtich i tried googling what it is but not clear answer so far.

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