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On Sunday, November 12, 2017, 12:04 PM, Cameron Kaiser <[email protected]>
wrote:
> Sometimes I get a warning after startup of my MDD running Tiger that my
> clock is not set right. I understand that's probably a PRAM battery problem.
>
> As my clock is set to be connected to the internet I always see the right
> date and time. There are no other problems as far as I know.
D>
> What problems are known to occur when a MDD has a weak PRAM battery? Is ist
> absolutely necessary to change it? Thanks for your comments.
PRAM stores things such as date and time, time zone, system volume settings
and some networking settings such as AppleTalk. None of these are critical
but they can be obnoxious if they get scrambled. Although OS X stores less in
PRAM than OS 9 did, it is still important, and there may be other settings
lost if your PRAM battery is low that you might not notice until later. The
1/2-AA style lithium battery that is used by most Power Macs is easy to find
from electronics stores and Amazon, and costs only a few dollars.
This is different from OpenFirmware NVRAM, which stores boot strings and
other startup information in non-volatile RAM which is not battery-backed and
is not affected by the PRAM battery.
--
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Cameron Kaiser * Floodgap Systems * www.floodgap.com * [email protected]
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