Encore/ST G4 Duet
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Driver (2)
Firmware (0)
Manual (5)
IDDownload TitleDownload LinkPost Date
264 Encore/ST G4 Duet 1.7 GHz Processor Upgrade Card User's GuideMay-08-19
266 Encore/ST G4 Duet (With No Heatsink) Processor Upgrade Card User's GuideMay-08-19
319 Encore/ST G4 Duet Processor Upgrade Addendum InstructionsMay-08-19
Addendum instructions for installing the Sonnet Encore/ST G4 Duet Processor Upgrade Card into a supported Mac computer.
 
320 Encore/ST G4 Duet 1.4 GHz or Slower Processor Upgrade User's GuideMay-08-19
347 Encore/ST G4 Duet 1.8 GHz Processor Upgrade Card User's GuideMay-08-19
 
FAQ (9)
IDArticle TitlePost Date
72 The Crescendo/Encore installer hangs, or crashes the system; occurs most often when run from the Sonnet installer CD.May-12-09
76 Which current Encore/ST G4 processor upgrades include a pre-attached heat sink?May-12-09
All models in the Encore/ST G4 line made today, except for those with a part number that starts with SG4-C, include a pre-attached heat sink. Products with a part number that starts with SG4-C are for use only in Power Mac G4 Cube, and do not include a pre-attached heat sink.
 
77 I purchased an Encore/ST G4 processor upgrade that is just a card; is it less reliable than one with a pre-attached heat sink?May-12-09
169 May I discard my original CPU after installing Sonnet's upgrade cards? May-07-09
171 The speed indicated on the G3 or G4 chip on my Sonnet processor upgrade doesn't seem to match the speed of the upgrade I purchased. What's the story?May-07-09
175 The Crescendo/Encore installer hangs, or crashes the system; occurs most often when run from the Sonnet installer CD while using Mac OS 9.May-07-09
176 Sonnet OS X Installer InstructionsMay-07-09
204 Mac OS 10.5 "Leopard" shuts down a few seconds into booting after a new installation of the OS.May-07-09
This problem has nothing to do with our processor upgrade being in the machine or with the firmware update that was done beforehand.

It has everything to do with how 10.5 was installed. Doing the 10.5 install as a simple "Upgrade" rather than using some of the other options like Archive and Install or Erase and Install.

When you do a straight upgrade, the installer just overwrites the old 10.4 System folder and that can leave some incompatible kernel extensions lurking in the new 10.5 folder whose response to that is to shut down on boot if it encounters something it doesn't like. So you need to do an Archive and Install of 10.5. This will create a new System folder, migrate your various user settings but it won't migrate any outdated stuff to the new folder.
 
218 The computer's standard startup process takes noticeably longer after upgrading to any Mac OS 9.x system from Mac OS 8.6 or earlier.May-12-09