To troubleshoot or identify problems related to the installation of a Power Macintosh Upgrade Card, try the following:
* Perform a clean install of the system software from the disks supplied
with the Power Macintosh Upgrade Card.
* Check to see if the computer's DRAM SIMMs are composite. Composite SIMMs
are not supported in a Macintosh and can cause problems in Macintosh
computers using the upgrade card.
* Test with all external SCSI devices disconnected. Devices with older
device drivers may cause the system to crash when starting up in PowerPC
processor mode.
* Remove NuBus cards, especially third-party video cards, and test using
the computer's built-in video. Drivers loaded for the cards may be
incompatible.
* Remove any extra RAM and test. Maybe there is a SIMM installed that is
not within specifications.
* Try the Power Macintosh Upgrade Card in another Macintosh computer, if
one is available.
The goal of the troubleshooting procedure is to determine whether the card is good. You can do this by making sure the Macintosh it is installed in is as close to factory specifications as possible (for example, no extra RAM, NuBus devices, and so on). If the tests still fail, it is possible that the card is failing. You can test the card by trying it with another Macintosh computers.
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