The board from the HP Pavilion a6200n which has the NVIDIA nForce 430 Chipset works great -- I tested it multiple times reading, writing and erasing the BIOS chip, no flaws, no errors at all. I'm also going to try and write the VESA chip (nVidia MCP61-80) which seems to be a separate chip, because that is the chip that seems to be causing all the trouble on this board.

Anyway, just thought you'd like to add that info to your list. I can also provide the dump from flashrom -V that the program says to email to you, as support isn't quite complete for my board/chip if you want.

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Peace, Love, Empathy

Alexander Max Rowsell