>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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