Hi all;
I've got a G4 graphite tower (Sawtooth) w/756 Mg of RAM and a upgraded (daystar, 1.5g hz) processor. I've got two 80 gig HDs -- one running OS X Tiger, and the other running 9.2.2.
I was working in 9.2.2, when Earthlink's registration-and-modification application kept causing a hard freeze. I had to power down a few times, but it always came back up without obvious problems. In my attempt to solve the Earthlink problem, I zapped the PRAM. Then when I started up, it booted to the Tiger HD. "No problem," I thought, I just selected 9.2.2 as my new start-up disk, and hit restart.
That's when the real problem started: It never restarted in OS 9: It just gave me a blank screen and no start-up chimes.
I reset the NVRAM through open firmware, and when it rebooted, it came up on the OS X Tiger HD. I tried again to select the OS 9 HD as my new start-up drive, but when I hit restart, it did the same thing as before -- no boot, no chimes, no video, no nothing.
Reseting the NVRAM again gets me back to the OS X HD and that seems to be working fine. I can look at the OS 9 HD, but I can't boot from it. The other interesting wrinkle is that I can't boot from a CD either. After a successful shut down from OS X, I start up, holding down the C key, and get the same "nothing" that I got before. This also happens when I select the CD as the new start-up disk.
Things I've already tried:
I tried booting from a CD
held down the CMD-OPT-SHIFT-DELETE-# to specify a start up disk
pressed the PMU button on the mother board
The battery is fine, but I'm stumped.
Any hints that any one could offer would be very appreciated.
Thanks,
Dale
I've got a G4 graphite tower (Sawtooth) w/756 Mg of RAM and a upgraded (daystar, 1.5g hz) processor. I've got two 80 gig HDs -- one running OS X Tiger, and the other running 9.2.2.
I was working in 9.2.2, when Earthlink's registration-and-modification application kept causing a hard freeze. I had to power down a few times, but it always came back up without obvious problems. In my attempt to solve the Earthlink problem, I zapped the PRAM. Then when I started up, it booted to the Tiger HD. "No problem," I thought, I just selected 9.2.2 as my new start-up disk, and hit restart.
That's when the real problem started: It never restarted in OS 9: It just gave me a blank screen and no start-up chimes.
I reset the NVRAM through open firmware, and when it rebooted, it came up on the OS X Tiger HD. I tried again to select the OS 9 HD as my new start-up drive, but when I hit restart, it did the same thing as before -- no boot, no chimes, no video, no nothing.
Reseting the NVRAM again gets me back to the OS X HD and that seems to be working fine. I can look at the OS 9 HD, but I can't boot from it. The other interesting wrinkle is that I can't boot from a CD either. After a successful shut down from OS X, I start up, holding down the C key, and get the same "nothing" that I got before. This also happens when I select the CD as the new start-up disk.
Things I've already tried:
I tried booting from a CD
held down the CMD-OPT-SHIFT-DELETE-# to specify a start up disk
pressed the PMU button on the mother board
The battery is fine, but I'm stumped.
Any hints that any one could offer would be very appreciated.
Thanks,
Dale