Q: Power Mac G4 Mdd with sonnet mdx duet 1.8 ghz
Hi (sorry for my english)
I bought a Sonnet Duet 1.8 I fully installed the firmware is that the g4 mdd card with osx 10.5 is ok but when I start from 9.2.2 to the end of the loading of extensions freezes and I have to restart it manually, I tried with the extensions off and is the same, I tried to remove all the pci card and I have not solved anything, I tried booting from the original disk and nothing, I tried to do an installation of the system on a g3 and then start it by g4 and nothing, I unplugged everything that you could pull fans, dvd, etc. and nothing I have tried different mac os 9.2.1,9.2.2 (with different mac os rom from 9.0.4 to 10.2.1 to finish which should be the last) and nothing but installing the original processor is a dual 1.0 ghz everything goes perfectly please help me I do not know what more to do
Thanks
Giuseppe Falcone
Posted on Jun 3, 2012 9:02 AM
For other 7447A processor upgrades, it is always necessary to remove the CPU Plugins file from the “OS 9/System Folder/Extensions/Multiprocessing” folder after booting using the original CPU.
Failure to do so would result in the inability to boot to OS 9 with the new 7447A (or 7457) processor upgrade.
It may be worth trying this with your Duet upgrade.
Another possible fix is to reinstall the OS 9.2.2 update, but configure the updater to be a "Universal" install.
on the installer's page named "Install Software" (the one with the "Start" button) click the "Customize" button; in the new window, from the pulldown menu to the right of the INstall OS 8.x item select "Customized Installation"; in the next new window, select "Universal Installation" from the pulldown menu at the top. Then click the Start button.
Don Archibald posted those instructions here:
https://discussions.apple.com/thread/2360258?start=0&tstart=0
Posted on Jun 4, 2012 2:44 AM