BIOS modding reprogramming. How do I get around CHecksum error?

RamonetB

Member
Jan 20, 2002
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I'm not well versed in checksum calculations or even how it is dealt with in a BIOS.
Generally you either store the checksum data for comparrison or utilize another algorithm based on the lower bytes of the final calculation.
From what I understand an AMI BIOS stores the checksum value.
Changing certain values in the BIOS will invalidate this calculation.
Where are these bytes stored and how do I deal with fixing a BIOS checksum error?

Do I have no idea what I'm talking about?

Several of us have been dealing with modding a laptop BIOS to support the AMD K6-2+. This checksum is the last thing on the list that stands in our way (other than actual testing of course).

PLEASE HELP!

Thankies!
 

RamonetB

Member
Jan 20, 2002
36
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Of course I've come across pages stating that the BIOS adds a said value to the Checksum and thus resulting in 0. This keeps things keen. Hmmm....?





*bump*