hi all

''Error, can't write ESCD'' comes if your bios chip is broken. final (and only?) 
soloution is to replace the chip with a compatible, mean same size chip.

why i am so sure? cause i have p2b with this error. if i boot my a7v, hot-unplug 
the bios chip, hotplug the one from p2p and flash it with a7v bios i also get checksum 
error. boot a7v....and yes, same ''Error, can't write ESCD''  :)

if you are having problems (like i had) find a chip wich is compatible to the one 
from p2b, and need escd corectly written because of O's needs it, just take the bioschip 
from a newer board (p2b-ls, a7v..) witch has SAME SIZE and do this:
boot p2b with original chip, backup it using ie. amibios
"aflash" tool.  hotunplug it, hotplug the good one and backup it too. now flash the 
backup from old, broken chip in the new one. boot your p2b ---> "escd written succesfull". 
after the setup of new O's (or whatever..) just boot p2b and write back your backup 
of the other board p2b-ls, a7v..).  
note:
the "hotplug" procedure works also if you have board which does not boot at all, 
ie. cause bios virus (had one some time before..), in this case you have to flash 
the chip in a board which you can boot (and has compatible chip type of course). 

hmm, yes, take care, you can destroy your hardware, i am not responsible for what 
you do.

(if anybody knows a vendor for blank bios chips in switzerland, europe please tell 
me. atmel deals not as easy with free samples or private buyers like national or 
maxim does :(  )

hheenz

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