Open Firmware is a cross-platform firmware standard for controlling hardware. Open Firmware is used by all PCI-based Mac OS computers, including Power Computing's PCI-based computers.
The following chart displays the various Power Computing computers and the version of Open Firmware they ship with:
Model Architecture Version of OF
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PowerCurve Catalyst 1.0.5
PowerWave Tsunami 1.0.5
PowerCenter Catalyst 1.0.5
PowerTower Catalyst 1.0.5
PowerBase Alchemy 2.0
PowerTower Pro Tsunami 1.0.5
PowerCenter Pro Catalyst 1.0.5
Machines Affected: PowerCurve, PowerWave, PowerCenter, PowerTower, PowerBase, PowerTower Pro, PowerCenter Pro