At 01:59 AM 18/03/2007, Christian Boltz wrote:
Hello,
on Samstag, 17. März 2007, scsijon wrote:
?what about something in the startup script that allows for the ability to lock out individual blocks of ram that are known faulty from use.
I don't know how many old, but linux serviceable, notebooks that i've had to tell the owners nothing can be done with because a block of the ram on the motherboard ram has failed. They are of course out of warrenty and parts are either too expensive or non obtainable.
Just google for "badram" - there's a kernel patch available. Or, if only the upper blocks of RAM are broken, use the mem=... boot parameter.
However, I don't know if it is a good idea to work with broken RAM - it might break more sooner or later and cause broken data. If things go bad, you won't even notice it and end up with lots of broken files on your harddisk. Not really funny...
So the question is: how much are your data worth? (My answer: usually much more than new RAM would cost!)
as I said basic ram in most notebooks is not removable. just pulled a p3 notebook I have on shelf with this problem to quote as an example: has 256meg on motherboard (fixed non-removable) with 128meg additional in socket. problem is the faulty ram is a 16byte block in the second 64k of the fixed ram. it's got a "soft" error, which means that sometimes it's ok other times it's not. other than this one problem there is nothing wrong with the notebook. I will have a search and read for the patch, but this may byte back as i've never patched a kernal before. Is there a quick guide anywhere? scsijon
Regards,
Christian Boltz
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