An anonymous reader sent a tip regarding Beige G3's with the Fast/Wide SCSI option. If you've been getting a "Can't Find...53C875" error when trying to cold-boot the machine, here's one possible solution: Boot from the OS X Install CD and use the Startup Disk utility (Control Panels) to specify the desired startup disk.
I can't verify either the problem or the solution, but thought this may be of interest to some of you. If this is way off base, please let me know and I'll revise or remove the tip.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20020122093848111