On Sep 11, 2008, at 6:57 AM, Amanda Ward wrote:

>
> On Sep 11, 2008, at 2:30 , Powermac wrote:
>
>> Are there any common CPUs that would be a cheap upgrade for a 450Mhz
>> G4 AGP? Newer models went to 133 FSB and I think the original AGP was
>> 100Mhz.
>
> Sticking to the 100 MHz bus and Apple CPU's, you're pretty much
> limited to 500 MHz. Your AGP =might= support dual CPU's and the MP 500
> from a Gigabit Ethernet model could work. Check this web page for more
> information: http://www.newertech.com/tech_support/uni-north.php
>
> Some CPU's from 133 MHz FSB models are reported to be usable in the
> Sawtooth and Gig-E, but I've no experience in this area and will defer
> to the experts to clarify.

The 133MHz bus Apple processors (from Quicksilvers and Digital Audios)  
are "usable" in your Sawtooth with the following issues:

1) QS processors will need an additional 12v line brought to it.  
Fairly easy to do

2) The QS and DA processors have a different form factor than a  
Sawtooth's, so to use one you need to remove one of the onboard IDE/ 
ATA connectors. Difficult to do and a bummer to lose one channel.

3) The processor will only run at 100MHz speed with the built in  
multiplier. So that a 733 processor will run at 550MHz. Bummer speed  
drop.

Len


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