For a long time a Crossflash my GA-EX58-UD5 Rev 1.0 F13Mod to GA-EX58-Extreme F13Umod to use Intel VT-d on an ESXi server. Now I want to sell the board and flash back to basic F13 Bios from gigabyte. But whenever I try, SPIflash 1.20 says, invalid optrom...

I think the roms that I have are unuseable for backflash maybe?!

Is someone able to helpin me?

Thx Patrick from Germany. :)
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