The problem may be that one or more of the RAM chips that are installed on the logic board of the computer are 8MB DIMMs.
With previous versions of the Crescendo/7200 enabler, having 8MB DIMMs on the logic board was known to occasionally cause a conflict. With the release of the 7200 enabler version 1.1, Sonnet expands its support of RAM running on both the upgrade card and the logic board. To update to version 1.1, remove the 7200 upgrade processor and boot the computer. Then download the software. Once downloaded, run through the installation. The installer will remove any old version of the enabler that is currently installed and install version 1.1. When the installer is done, shut the computer down, reinsert the 7200 upgrade processor, and boot the computer normally.