IMac G5 Boot-Up Problem - What Next?
Hi, All!
I have 20" iMacG5, 1.8ghz, non-Intel, running 10.4.10
All fine until yesterday morning. On bootup it just gets to the Apple and activity indicator screen and indicator spins indefinitely.
Have tried the following:
1. Unplugged everything but the keyboard and power cord.
2. Zapped PRAM twice
3. Reset the SRM??? (Sorry, forgot the acronym)
4. Safe boot = Same Apple screen then iMac powers off
5. Booting off system disk, running Disk Utilities, getting error message:
The underlying task reported failure on exit (-9972)
6. Booting into single-user mode, using /sbin/fsck/-fy command, performs first three tasks then I also get error message:
I/O error
invalid record count
(3, 54)
**VOLUME CHECK FAILED
7. Using TechTools boot disk, stalls on repair, etc but shows that the HD IS mounting. (error -4)
8. Took the back off to visually inspect for any loose cabling, dirt, etc. All seemed fine.
Anything else? No indications of any trouble the previous evening. Most recent changes to software:
1. Upgraded to 10.4.10 about two weeks ago
2. Upgraded iTunes and QuickTime to most recent versions a week ago
3. Bought newest Video iPod and synched it three days ago
I'm styimied at this point. I wish I could make an OS X boot-up disk to get to the desktop to retrieve some secondary files I haven't backed up (major ones are backed up). I miss OS 9 sometimes. Many more workarounds.
And the thought of having to start all over with a new drive is rather daunting considering all the software I'll have to try to re-register ...
Thanks!
--Ted
iMac G5, Powerbook G4 Mac OS X (10.4.10) iMac G5 -- Non-intel, 1.8 ghz
iMac G5, Powerbook G4 Mac OS X (10.4.10)
iMac G5, Powerbook G4 Mac OS X (10.4.6)
It may be slow, but at least you'll have the data
I do hope that you are using the external as a bootable clone drive, with Archive and Install as your backup app.
Please let us know if you succeed in getting everything off,
Miriam
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Unfortunately, it might be a hardware problem, such as graphics hardware, power supply, logic board...
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http://support.apple.com/kb/HT1379
Also reset SMU (power management). This is the procedure for iMac G5.
http://support.apple.com/kb/HT1767
When you connect it back to power, I saw in the video that you were using a direct connection to a wall outlet, by itself. That's good, to rule out a faulty (or over-crowded) power strip. Be sure to disconnect ALL peripheral devices; start it up with only the power cord connected, then add just a standard keyboard and mouse. If that makes a difference (and it starts up properly), run it that way for a while to see if it continues.
Check the vents along the bottom (and elsewhere) for accumulation of dust, blocking airflow. That could cause overheating, which may result in video issues. If this is the older type of iMac G5 that is easy to open up, you can also check it internally for dust.
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http://eshop.macsales.com/item/NewerTech/CR2032/
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