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- Jan 16, 2011
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Checked on win 10 the RX580; it has the tc341mh.612 bios version; it is reported the correct latest version by MSI. I cannot find any switch for double BIOS mentioned by jb007
Sorry, I didn't know yours was not a Sapphire RX 580. See below.
Which RX-580 and where on the card?
For others coming across this thread and have a Sapphire Nitro+ RX 580, they have a dual UEFI VBIOS. The Sapphire Pulse cards do not, they have a single UEFI VBIOS.
A lot of these cards are turning up second hand that have been used by crypto miners as @CaseySJ mentioned. Sometimes they might have both VBIOSs loaded with firmware optimised for different versions of crypto mining, and if not restored to default factory VBIOS settings they will possibly not display as crypto miners are just using them for their compute units.
Hopefully when they sell them on they restore the factory firmware.