Re: Fan issue on Powermac g3 400mh, 640 ram

2011-04-26 Thread crumvoc
Thank you to all!  That makes me feel a lot better.  I guess I'll just
try to monitor in case of a fan failure.  I really like this old Mac.
It always makes me smile when I open the case and see the amazing
interior.  Giving it to my elderly parents and will try to teach them
how to do email.  I have set up a  very simplified desktop for them
with only a mail client (Thunderbird), iPhoto and Safari.

On Apr 25, 9:04 pm, Kris Tilford ktilfo...@cox.net wrote:
 On Apr 25, 2011, at 9:01 PM, Bill Connelly wrote:

  Thanks and my apologies ... guess I got caught off guard with what  
  seems to be double negative like techies ...

 I read it the same way the first time, and started at reply based upon  
 the wrong reading, and only realized my error when I saw the first  
 reply, which blew the dust out of my own head.

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Fan issue on Powermac g3 400mh, 640 ram

2011-04-25 Thread crumvoc
This computer works great, except for other than a power-off, BOTH the
fans (internal and power supply)  will not shut down.  I have reset
PRAM, NVRAM, current firmware, etc.  Also reset CUDA.   Any chance
that the PRAM battery might be causing this?  Any other suggestions?

Thanks

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Re: Fan issue on Powermac g3 400mh, 640 ram

2011-04-25 Thread Wayne Stewart
I have 3 BW G3s and neither fan ever stops spinning while they're
powered up. I was under the impression that they weren't supposed to
stop

On Apr 24, 10:06 pm, crumvoc crumvoc...@gmail.com wrote:
 This computer works great, except for other than a power-off, BOTH the
 fans (internal and power supply)  will not shut down.  I have reset
 PRAM, NVRAM, current firmware, etc.  Also reset CUDA.   Any chance
 that the PRAM battery might be causing this?  Any other suggestions?

 Thanks

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Re: Fan issue on Powermac g3 400mh, 640 ram

2011-04-25 Thread Bruce Johnson

On Apr 24, 2011, at 10:06 PM, crumvoc wrote:

 This computer works great, except for other than a power-off, BOTH the
 fans (internal and power supply)  will not shut down. 

I don't think Apple introduced active thermal fan control until later in the 
the G4 series; the fans simply run all the time. 

If the fans are suddenly that much more noticeable, they're probably starting 
to fail.

-- 
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs


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Re: Fan issue on Powermac g3 400mh, 640 ram

2011-04-25 Thread Kris Tilford

On Apr 25, 2011, at 12:06 AM, crumvoc wrote:


This computer works great, except for other than a power-off, BOTH the
fans (internal and power supply)  will not shut down.


This old computer doesn't support hibernate (safe sleep), which would  
be the only situation I'm aware of where an operational desktop would  
have the fans stop running while not in a shutdown (power off) mode.  
Both fans SHOULD be running in any mode other than a shutdown. If  
either stops, that's when you've got real problems.


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Re: Fan issue on Powermac g3 400mh, 640 ram

2011-04-25 Thread Kris Tilford

On Apr 25, 2011, at 3:24 PM, Bill Connelly wrote:

I believe the original poster is saying the fans won't stop when the  
machine is shutdown ... i.e. powered off.


Not Sleep Mode ... Not Booted Up ... Not in Screen Saver Mode ...  
but, Shut Down.


Weird.


I think you read his posting wrong. Here is what he wrote:


This computer works great, except for other than a power-off, BOTH the
fans (internal and power supply) will not shut down.


The key words are other than power-off, which means both fans DO  
shutdown during power-off. These old G3's don't have variable fan  
speed, so his Mac is operating normally.


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Re: Fan issue on Powermac g3 400mh, 640 ram

2011-04-25 Thread Valter Prahlad
Il giorno 25-04-2011 19:34, Bruce Johnson ha scritto:

 I don't think Apple introduced active thermal fan control until later in the
 the G4 series; the fans simply run all the time.

It's been a while since I sold my Beige G3 266...
but I seem to remember hearing its fans revving up sometimes (in really hot
days). A technician friend of mine confirmed they had variable speed.

So maybe even G3s had some kind of thermal control.

 If the fans are suddenly that much more noticeable, they're probably starting
 to fail.
If the fans have become noisy, that could be a sign of malfunction.
OTOH, if they have just become louder, maybe it's a sign of increased
temperature (too much dust inside the computer?).

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Re: Fan issue on Powermac g3 400mh, 640 ram

2011-04-25 Thread Bill Connelly


On Apr 25, 2011, at 6:52 PM, Kris Tilford wrote:


On Apr 25, 2011, at 3:24 PM, Bill Connelly wrote:


Weird.


I think you read his posting wrong. Here is what he wrote:

This computer works great, except for other than a power-off, BOTH  
the

fans (internal and power supply) will not shut down.


The key words are other than power-off, which means both fans DO  
shutdown during power-off. These old G3's don't have variable fan  
speed, so his Mac is operating normally.


Thanks and my apologies ... guess I got caught off guard with what  
seems to be double negative like techies ...


either that, or maybe I need to blow the dust out of my head a bit ...

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Re: Fan issue on Powermac g3 400mh, 640 ram

2011-04-25 Thread Kris Tilford

On Apr 25, 2011, at 9:01 PM, Bill Connelly wrote:

Thanks and my apologies ... guess I got caught off guard with what  
seems to be double negative like techies ...


I read it the same way the first time, and started at reply based upon  
the wrong reading, and only realized my error when I saw the first  
reply, which blew the dust out of my own head.


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