On 18/09/2024 10:11, Ralph Corderoy wrote:
However, the guy there said that a BIOS Battery shouldn't prevent
booting; is that true?
I think it's false. If the non-volatile BIOS memory, commonly known as
CMOS RAM, isn't perfectly preserving its contents due to battery failure
then a checksum or digest may alert the BIOS to corruption and it could
then refuse to proceed. Others seem to think this is possible:
https://duckduckgo.com/?t=ffab&q=cmos+battery+failure+stops+booting&ia=web
Well. I took me a while to collect the laptop, because my car was
having accident damage repaired (Lady in a Campervan changed into my
lane) and my wife's Micra was awaiting a new door lock. Anyway, I
collected it a few days ago.
Despite what the manual, says, it is not necessary to remove the main
battery to get at the CMOS Battery, so I got it out this morning. The
terminal voltage of the cell is ~800 mV, so it looks like the signalling
was correct. I have now ordered a replacement, so it will be
interesting to see if that fixes the problem.
--
Terry Coles
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