On 27 Oct 2006 at 8:25, Tomaing, Lynette (Port Moresby) wrote:
> I have a toshiba laptop that just stopped working all of a sudden with
> this error message "INVALID DISK & CHECK SUM (cmos)".
>
> Can someone help me fix the problem.
Configuration information for the machine, including basic parameters of
hard drives, is stored in CMOS memory which retians its contents courtesy of
a small battery. A "checksum" value is calcuated and also stored there; if
the contents of this memory get corrupted, odds are very good that the
checksum value will no longer match the calculation, so the problem will be
detected.
More than 80% of the time, a checksum error indicates that the small
battery for the CMOS has run dry, and the configuration must be recreated.
This will continue every time you reboot until the battery is replaced.
Since this is a laptop, you may wish to get a shop to replace the battery
for you.
David Gillett
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This kind of legal boilerplate raises several issues:
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indicator, such as a line of dashes that runs most of the way across the
page.
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especially internationally.
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David Gillett
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