PowerBase 180 and Apple 7100/80

I installed Mac OS 8 on my PowerComputing PowerBase 180 and Apple 7100/80. Neither worked "normally". The PB 180 had to be booted off the CD by holding down the control-shift-command-delete keys. The 71000/80 needed the shift key held down to turn off extensions during the boot up. Otherwise, Mac OS 8 installed with no problems. This installation quirk for some computers is the biggest "miss" so far in the Mac OS 8 release. Fortunately, the "hits" are legion in comparison!