Tested and working 266MHz / 1M Sonnet Crescendo NuBus G3 Processor Card Upgrade!  Compatible with Power Macintosh 6100, 6100AV, 7100, 7100AV, 8100, 8100AV, and 8115.  Also works with Performa 6110, 6112, 6115, 6116, 6117, and 6118.  Will include a disk image with the Sonnet extension.