[BBC-Micro] Grrr.....annoying master cmos ram

Richard Gellman splodge at starfleet.homeunix.net
Thu Nov 9 21:26:56 GMT 2006


Sprow wrote:
> In article
> <38370.82.71.113.222.1163085016.squirrel at webmail.starfleet-net.co.uk>,
>    Richard Gellman <splodge at starfleet.homeunix.net> wrote:
>   
>>> I've recently replaced the batteries on my master's CMOS ram but it still
>>> fails fairly regularly (quite often with "Bad Sum" messages 
>>>       
>> It is in fact a DFS error, but as the user guide implies, its never seen
>>     
>                  ^ ADFS
>   
I disagree. While I do not doubt the error could exist in ADFS as well, 
I've definitely seen it listed as an error in the context of DFS. That 
may well be why the description reads "We don't believe this error exists".
> If you reset the machine while it's creating a directory (for example) that
> will probably give a "Bad Sum", though I would agree it tends to occur due
> to the ADFS workspace being corrupted rather than a genuine disc error.
>
>   
Yes. I have to say I've never seen a "genuine" Bad Sum error, only those 
that appear when pressing BREAK after playing a particularly 
memory-corrupting game.

-- Richard



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