Upgrading a PowerMac 7100/80
Sonnet Crescendo NuBus G3 250/512 ( supports System 7.1.2 through Mac� OS 9.1. )
Plug off the power cable.
Open the case by unscrewing the screw at the back.
Remove the L2 cache ( see picture ).
Insert the upgrade card into the PDS slot.
Close the case and turn on the mac.
Install drivers and reboot.
Congratulations.
Now instead of having a “ultra slow” mac, you have a “very slow” mac 🙂