| PRAM of MDD [message #355168] |
Sun, 12 November 2017 07:19  |
Jörg Duurkoop
Messages: 47
Registered: November 2012
Karma: 0
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Member |
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Hi
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.
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.
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| Re: PRAM of MDD [message #355170 is a reply to message #355168] |
Sun, 12 November 2017 13:39  |
peterhaas
Messages: 80
Registered: September 2012
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> 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.
The nominal voltage of the PRAM battery is 3.6 volts.
The battery may still be functional when is reaches 3.0 volts, at which
point it is considered exhausted.
The PRAM chip is quite variable, and some will appear to have failed at
somewhat above 3.0 volts, while others will still be good at somewhat
below 3.0 volts.
The best plan is to replace the battery when it is low, but is still above
3.0 volts.
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| Re: PRAM of MDD [message #355171 is a reply to message #355168] |
Sun, 12 November 2017 14:03 |
Clark Martin
Messages: 156
Registered: August 2012
Karma: 0
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Senior Member |
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Typically you can run okay without a PRAM battery.
One problem I have observed with a low battery in some models is a failure to start. Simply removing the battery allowed the machine to start. I don’t know if the MDD is one of the machines that exhibits this behavior.
Clark Martin
A designated driver on the information Super Highway
> On Nov 12, 2017, at 4:19 AM, Jörg <yawgie@gmail.com> wrote:
>
> Hi
>
> 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.
>
> 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.
>
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| Re: PRAM of MDD [message #355172 is a reply to message #355168] |
Sun, 12 November 2017 09:01 |
g3-5-list
Messages: 45
Registered: April 2014
Karma: 0
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Member |
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On Nov 12, 2017, at 4:19 AM, Jörg wrote:
> Hi
>
> 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.
>
> 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.
>
> --
> Per aspera ad astra.
>
>
FWIW I have 2 MDD's and 2 G5 Power Macs they don't even have the batteries in them and I have no issues with any of them.
John Carmonne
Yorba Linda CA
92886 USA
MacPro 2.66 Quad Nehalem
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