put the hdd in my classic II to see whats on the hdd and it booted the CC hdd
you installed your hard drive from your Classic II into your Color Classic and then the Color Classic booted from its internal hard drive, where it had refused before? Is that correct?
Other way round - HD boots fine in another machine.
If you're using Apple's free system downloads, only 7.5.3 will run on the Color Classic.
If you have System 7.1 / you will need System Enabler 401.
1 can a dead pram battery(3.6v) stop the hdd from working
Try removing the battery and booting without it. If that doesn't work, leave the Mac plugged in and running (ie, trying to boot) for a few minutes, then try quickly flicking it off and on again. You can sometimes get enough charge stored in the system to boot it that way if you're fast. If that fails, try leaving it running for say an hour, and try it again.
