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Helpful answers
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Feb 16, 2012 7:48 AM in response to Aaryn Bechardby Allan Jones,Thoughts?
They would come easier if you posted the iMac variant (or at least the processor type from "About this Mac") and what OS version it is running. The iMac name goes back to1998 and each model is different from the next with different potential hardware issues
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Feb 16, 2012 7:55 AM in response to Allan Jonesby Aaryn Bechard,Allan, I understand the lineage of the iMac, but without being able to boot the machine, it tends to be a little difficult to be more specific than it is running OS 10.4 and it is a pre-Intel flatscreen model (not a half moon).
Aaryn
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Feb 16, 2012 10:30 AM in response to Aaryn Bechardby Allan Jones,★Helpfulit is a pre-Intel flatscreen model (not a half moon)
OK. from your original post I thought you could get it to turn of just long enough to grab "About this Mac." My apologies for misinterprting that info.
Your description fits a G5 iMac and they can't run higher than 10.5.8, so you're nicely narrowed the field. When Disk Warrior seemed to help, can you recall what find of errors it reported? Did you make sure the data cable was still seated when you buttoned up the computer after removing it? I fought that issue on an older Mac whose data cable was short--it tended to lift slightly during the wrap-up of reassembly. Took two days to figure out, so I had to ask.
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Feb 16, 2012 11:28 AM in response to Allan Jonesby Aaryn Bechard,Allan, thanks for getting back to me again. Disk Warrior didn't reveal any errors.
When you say the data cable, which one are you referring to? There are the 2 that plug into the hard drive, but is there another one I should be looking at? Hopefully you can save me 2 days of looking.
Aaryn
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Feb 17, 2012 10:07 PM in response to Aaryn Bechardby Aaryn Bechard,Allan, I've tried this.....
http://support.apple.com/kb/HT2173
...... and I'm having the same results. I even tried it with a completely different hard drive, and had the same results.
LED 2 light stays on and does not go out. To me, it still sounds like something isn't engaging on startup. The fan fires up, and the hard rive begins to spin, but nothing else.
What can I deduce from these results?
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Feb 18, 2012 8:54 AM in response to Aaryn Bechardby Allan Jones,★HelpfulAaryn wrote:
When you say the data cable, which one are you referring to
The one that I fought was the ribbon cable on an ATA/IDE drive, but I now see that only the very first G5 iMacs had the ATA drive interface, so that's probably not the issue.
Apparently, the #2 LED being on is good. This article is about the plague of bad capacitors in G5 iMacs, but has extended info on whet the four LEDs indicate:
http://jimwarholic.com/2008/07/how-to-repair-apple-imac-g5.php
While the back is off, you might want to check for bad caps.
I'm better with the G3 and G4 iMacs so I'm quickly running out of ideas here. I hoping someone with more G5 experience can jump in.