Re: Performa 475 startup

[the pickle]

At 21:04 + on 07/02/03, Mark Benson wrote:

>On Friday, Feb 7, 2003, at 00:32 Europe/London, the pickle wrote:
>
>> At 18:26 -0600 on 06/02/03, Dan Palka wrote:
>>
>>> What exactly DOES the battery do anyway besides keep the clock
>>> running?
>>> How does it have the final say in whether or not your computer boots??
>>
>> In the case of the 475s, you'll find a full explanation in the FAQ.
>
>Erm, wow, what an answer ;).
>
>The PRAM holds all the settings for the computer that it needs to boot,
>such as what SCSI device it is to boot from by default and what screen
>size to use.

And I quote:

"What exactly DOES the battery do anyway besides keep the clock running?"

Your answer didn't tell us anything useful.
-- 

the pickle

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Re: Performa 475 startup

[Mark Benson]

On Friday, Feb 7, 2003, at 00:32 Europe/London, the pickle wrote:

> At 18:26 -0600 on 06/02/03, Dan Palka wrote:
>
>> What exactly DOES the battery do anyway besides keep the clock 
>> running?
>> How does it have the final say in whether or not your computer boots??
>
> In the case of the 475s, you'll find a full explanation in the FAQ.

Erm, wow, what an answer ;).

The PRAM holds all the settings for the computer that it needs to boot, 
such as what SCSI device it is to boot from by default and what screen 
size to use.

The PRAM in the LC475 is a fickle beast. It requires a good battery to 
even show a video signal at startup. Try this little dodge (at your own 
risk of course):

Turn on the LC475
Wait for the hard disk to spin up as normal
Once the hard disk is FULLY spun up and initialised turn the machine 
off and on in rapid succession.
If it boots it is definitely the PRAM.
If not, pull out the battery and try the above again
If that all fails unplug all power and the battery and leave it to 
stand for a while.

-- 
Mark Benson

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Re: Performa 475 startup

[the pickle]

At 18:26 -0600 on 06/02/03, Dan Palka wrote:

>What exactly DOES the battery do anyway besides keep the clock running?
>How does it have the final say in whether or not your computer boots??

In the case of the 475s, you'll find a full explanation in the FAQ.
-- 

the pickle

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Re: Performa 475 startup

[Dan Palka]

All of these people with boot problems, sounds like battery is a big 
issue here.

What exactly DOES the battery do anyway besides keep the clock running?  
How does it have the final say in whether or not your computer boots??




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Re: Performa 475 startup

[the pickle]

At 18:39 -0500 on 06/02/03, Clyde Kahrl wrote:

>find quadra info (eg LEMs quadra list) and I replaced the battery and
>it came back to life.  After many PRAM  clearings, a disk clearing

Check the battery again.

In the somewhat likely event that doesn't fix it, see if removing the battery
for several minutes helps matters at all.
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