The HARMONi Installer software is necessary to install the HARMONi G3 iMac processor/FireWire upgrade. It should be installed prior to the hardware, and is compatible with iMac models from Rev. A-D, including 233, 266, and 333 MHz.
This installer is crucial to ensuring that your upgrade goes smoothly and without any issues. We highly recommend downloading and running the HARMONi Installer before you attempt to install the upgrade.
In terms of compatibility, the HARMONi Installer works with iMac models ranging from 233 to 333 MHz (Rev. A-D). As long as you have one of these models, you should be good to go!
Overall, if you're considering the HARMONi G3 upgrade for your iMac, be sure to grab the HARMONi Installer as well. It's a necessary step in the installation process, and will help ensure that your upgrade is successful.
Version 1.1: N/A