Power Mac G5 will not boot. No Chime, Black Screen, Solid LED.
I have a Dual 2.5 G5 Power Mac. This morning I tried turning it on, I heard the chime but the screen stayed black. This has happened to me a few times before but normally it finally boots after trying a few times.
When it wouldn't boot, I turned it off by holding the power button. Thinking it may be the CMOS battery (since the problem seems to be getting progressively worse) I put one in from one of my other Macs. This time it booted up. I shut the computer back down to see if this was just a coincidence. This time when I pushed the power button I got nothing. Black screen again but this time no chime. I went and bought a fresh battery since the one I swapped out was also probably 6 years old. I put the new battery in and tried starting the computer. Still no chime, black screen, the led light stays lit (does not blink a pattern) and the computer does not boot. At this point I fear perhaps a power supply or even worse logic board.
I tried resetting the PRAM but obviously it had no effect at all since it doesn't even chime the first time.
Any ideas?
When it wouldn't boot, I turned it off by holding the power button. Thinking it may be the CMOS battery (since the problem seems to be getting progressively worse) I put one in from one of my other Macs. This time it booted up. I shut the computer back down to see if this was just a coincidence. This time when I pushed the power button I got nothing. Black screen again but this time no chime. I went and bought a fresh battery since the one I swapped out was also probably 6 years old. I put the new battery in and tried starting the computer. Still no chime, black screen, the led light stays lit (does not blink a pattern) and the computer does not boot. At this point I fear perhaps a power supply or even worse logic board.
I tried resetting the PRAM but obviously it had no effect at all since it doesn't even chime the first time.
Any ideas?
Power Mac G5 2.5 Dual, Mac OS X (10.5.8)