[G4] Power Mac G4 AGP

[Harry Freeman]

Greetings Rod ( + )!( + )

I could be mistaken but are you saying that you need a copy of OS 9 to  
install the Sonnet 1.8 CPU?

If I'm correct then the other responses that you have received have no  
meaning what so ever.

When I installed my new PowerLogix, 1.2GHz processor it was necessary  
to start from OS 9 so that the new CPU could be configured to the G4  
platform. Then once the new CPU was configured I could start from and  
run any of the Apple Operating Systems (well I've only tried OS 9,  
through OS X 10.5.6) without any problems.

Here are the installation instructions that came with the PowerLogix  
processor.

Firmware Patching: Since these CPU upgrades are based on the 7447A and  
7457, you must patch the system firmware before installing the CPU  
module. The included Powerlogix CD is bootable and has a patcher  
included. The install guide covers this procedure, but basically it's  
similar to applying an apple firmware update. You hold in the  
programmers button/switch on the front of the case while pressing the  
power button. Hold both until you hear the high pitched tone, then  
release them and hold the C key to boot from the PL CD. The PL CD  
boots into open firmware and automatically runs a script that shows a  
menu of options. Pressing the "4" option applies all the patches  
(system firmware, OS 9.x NVRAM patch, etc.). If the firmware has  
already been patched the script checks for that and displays a menu to  
remove any or all of the patches.

On Sep 30, 2008, at 5:26 AM, LeBron Rod wrote:

> I recently purchased a Power Mac G4 AGP 500MHz Single Core CPU,  
> 100Mhz Bus, 60G Hard drive, 2G RAM (upgraded by me), running OS  
> 10.2.8. I then purchased an upgrade Sonnet 1.8GHz CPU. The problem  
> that I have run into is that the firmware that came with the new CPU  
> requires that you boot from OS 9 in the Start Disk.
> _______________________________________________
>

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