overclock Mac Mini 1.25 to 1.42?

2011-01-31 Thread John Carmonne
I have a G4 Mac Mini 1.25 that I want to overclock to 1.42, has  
anyone had experience doing this? Also by chance is there a set of  
instructions on how to do it?


JOHN CARMONNE
Yorba Linda USA
From TiBook 867




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Re: overclock Mac Mini 1.25 to 1.42?

2011-01-31 Thread peterhaas

 I have a G4 Mac Mini 1.25 that I want to overclock to 1.42, has
 anyone had experience doing this? Also by chance is there a set of
 instructions on how to do it?

I once overclocked a 1.42 to 1.5.

I think 1.25 to 1.42 may be a stretch, but it might work.

I Googled on the usual suspects and got a photo which showed the four chip
resistors and a description of which gave which multiplier.

The board is a rather thick 6- or 8-layer job, and desoldering a chip
resistor is difficult, while soldering (or re-soldering) a chip resistor
is nearly impossible.

I cannot remember whether so-called zero-ohm resistors were used, or
pull-ups were used.

In either case, the thermal issues are the same.


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Re: overclock Mac Mini 1.25 to 1.42?

2011-01-31 Thread Jonas Ulrich
If you do try this, you can count on having to add more ventilation and
better cooling. Those tended to have cooling issues without the
overclocking. When I overclock G4 towers, things got unstable and way to
warm after about a 50mhz increase.

-Jonas

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Re: overclock Mac Mini 1.25 to 1.42?

2011-01-31 Thread peterhaas

 ... you can count on having to add more ventilation and
 better cooling. Those tended to have cooling issues without the
 overclocking.

Indeed so.

Only the last (and greatest) G4s are suitable for overclocking.

It was dicey, at best, for 1.42 to 1.5, and it is almost suicidal for 1.25
to 1.42.



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Re: overclock Mac Mini 1.25 to 1.42?

2011-01-31 Thread Kris Tilford

On Jan 31, 2011, at 12:21 PM, John Carmonne wrote:

I have a G4 Mac Mini 1.25 that I want to overclock to 1.42, has  
anyone had experience doing this? Also by chance is there a set of  
instructions on how to do it?


http://tinyurl.com/6gh6vl7

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