i tried to modify a letter of text (power zower) and i applied checksum fix but unfortunately it doesn't work.
from what I understand, bios is signed so it is not possible to alter anything because post fails during initialization.
I don't think the checksum can fix anything...
to write bios i used an external programmer. problem is not writing but the unsigned content.
Correct me if I'm wrong...
I also tried writing another card's bios unmodified. in this case the signature is correct but gpu id wrong and therefore the result is black screen without error beeps on the signature.
i tried to modify a letter of text (power zower) and i applied checksum fix but unfortunately it doesn't work. from what I understand, bios is signed so it is not possible to alter anything because post fails during initialization. I don't think the checksum can fix anything... to write bios i used an external programmer. problem is not writing but the unsigned content.
Correct me if I'm wrong...
I also tried writing another card's bios unmodified. in this case the signature is correct but gpu id wrong and therefore the result is black screen without error beeps on the signature.