https://web.archive.org/web/20060203031237/http://www.sonnettech.com:80/product/encore_st_duet.html

it appears that sonnet routinely upgraded their "Encore ST" G4 cpu upgrades,
because as time progresses on the web.archive.org backup server, if u check the page for the MDX duet g4 cpu upgrades, the ghz rating of the cpu is changing from month to month, starting at dual 500 and workin its way up to dual 1.8ghz i think?
so our original poster here has the 1.6ghz model, from my quick look it appears this model came out around the end of 2005 or some time during 2006

now dont yall remember the thread just a few weeks or months back where i was linking to the cpu plugin enabler file? and i was telling the guy to try the newer version? i cant find the thread.. so i have to try to dig up the same info again:

SDG
please listen to me and talk to my friend Max1zz
he can make you a sata card for a good price
many other people have done so here on the forum

whats involved is that he buy a generic sil3112 sata card
and will remove + resolder a larger flash rom
onto the card so that it can accept the seritek firmware
(the seritek firmware contains code that checks the mfr
+ size of the flash rom chip so it only works with larger
eeproms of a certain manufacturer)
and then you have a mac os 9 bootable sata2 pci card
with 2 ports

i have a few cards and they work great just as good
as a regular seritek 1s2 - only mine werent made by
max but someone else over at 68k army site

you can contact him at http://www.max1zzz.co.uk

Hi There SuperC

honestly i think what we are seeing here is a compounded issue
the 2nd of which being that the computer has a 3rd party cpu..

can you please share a photo of the back of the G4? or some details so we can see which exact model this computer was BEFORE it had the cpu upgrade?

(i really wish this forum would make this a REQUIREMENT for all peopl who post asking for assistance to figure out strange problems.. first thing u want to do.. tell us which specific mac model you have, as specific as possible -- this is a huge pain in the ass for most people to figure out obviously otherwise they would be readily sharing this info)

sorry, i was thinking of the quicksilver model, i guess there really isnt that much variation if it is a "digital audio" g4 that he has.. as they were all produced in january of 2001
according to everymac - i know mactron laughs at this site - but i still use it purely out of convenience lol

have u tried downloading the original macos9 9.1 restore cd for the "Digital Audio" G4??

$25 PowerMac G4 (Digital Audio - Jan 2001)
original/authentic Apple restore disc set
(grey color) in original white package
("600-8790, G4 Media")

* Mac OS 9.1 Restore CDs (2):
CD version 1.0.1: 691-2943-A, 691-2944-A

* iMovie 2 CD: version 2.0.1: Z691-2764-A
* iTunes CD: version 1.0: 691-2900-A

* Apple Hardware Test CD: SW version 9.1: 691-2899-A

try these:
https://www.macintoshrepository.org/download.php?id=834
https://www.macintoshrepository.org/download.php?id=835
(seems u actually need to register for your own account at macintoshrepository.org to download these, links are from this page: https://www.macintoshrepository.org/490-mac-os-9-1-9-1-update-9-1-for-ibook-imac-early-2001-pm-g4-digital-audio)

additional info:
http://www.ubbcentral.com/store/item/Apple-PowerMac-G4-Media-Restore-Discs-OS-91_131752899375.html

http://apple-history.com/g4da

HA!!
after three years, I have finally realised I had made a gross mistake in my commands to set the "record monitor" switch!

I have been piqued by adriaanhendrik success with his amazing controller, and decided to get at the bottom of this impasse.....

Hi there,
I'm pleased to see that you noticed my success with the CBX D5.
I was able install Logic Audio on my old Mac laptop and was able to read all of the SysEx commands and data coming from that application to the CBX using the software from https://mountainutilities.eu/miditools.
I wish you a lot of patience and success.!!

Check out this video which is all about the completion of this project.

https://youtu.be/aeTsrw4WYyY

Best Regards,
Ad

There was a sonnet patch to the multi processor plugin, not sure it works with your upgrade.

What CPU do you have?

7447, 7448, 7445, 7455, 7457?