Apple G5 boot up issue (dual 2Ghz)
07 September 2006, 08:55 AM
#1
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Apple G5 boot up issue (dual 2Ghz)
Need some help here - one of my G5 dual 2Ghz that won't boot up 
Power it on, and it hangs on the white background/grey Apple page. Just sits there. Sometimes the fans will go into overdrive.
It will eventually boot up OSX, but normallly after about 10 times.
Tried resetting the PRAM (however today that hasn't worked at all - can't even get it to multiple chime)
The battery has been checked (with a multimeter) too (OK). Nothing else is connected to the Mac.
Is there anything I've missed?
Dan
Power it on, and it hangs on the white background/grey Apple page. Just sits there. Sometimes the fans will go into overdrive.
It will eventually boot up OSX, but normallly after about 10 times.
Tried resetting the PRAM (however today that hasn't worked at all - can't even get it to multiple chime)
The battery has been checked (with a multimeter) too (OK). Nothing else is connected to the Mac.
Is there anything I've missed?
Dan
07 September 2006, 12:48 PM
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Dan,
You say you have reset PRAM, but have you also reset the PMU (Power Management Unit) that's on the motherboard. It's quick and worth a shot, though I think Rich might have nailed it.
The iBook G4 I've got here started playing silly buggers yesterday, doing exactly what you've just seen on the G5. I booted into single user mode and "fsck -fy"'d the disk and it did fix a few things but the boot failed, so I booted from the Tiger DVD, ran Disk Utility and repaired the entire drive (it's partitioned into three), rebooted and it came up with no problems.
I did find a "Damaged Files" folder at the root of the partition I'd been trying to boot from, so I'm guessing problems were found.
You say you have reset PRAM, but have you also reset the PMU (Power Management Unit) that's on the motherboard. It's quick and worth a shot, though I think Rich might have nailed it.
The iBook G4 I've got here started playing silly buggers yesterday, doing exactly what you've just seen on the G5. I booted into single user mode and "fsck -fy"'d the disk and it did fix a few things but the boot failed, so I booted from the Tiger DVD, ran Disk Utility and repaired the entire drive (it's partitioned into three), rebooted and it came up with no problems.
I did find a "Damaged Files" folder at the root of the partition I'd been trying to boot from, so I'm guessing problems were found.
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