Which parts need replacing?
Hello, am on a G4 with 10.4. I can only boot from an external dvd now but once I get tiger install disk going and go to disk utilities or to install it can't find the imac hard drive anymore.
If I go to system profiler most of the stuff looks okay except ATA which just shows a "~:" sign , for Disk Burning it says "no device found" and also says "no device found" for Parallel SCSI and Serial ATA - whether these should be there or not is a mystery to me, but the hard drive doesn't show up anywhere.
I suspect the hard drive has gone kaput but could it be anything else?
any advice short of "chuck it out of the window" which is what i feel like doing gratefully received, thanks
Anne,
I can understand your confusion. The basic problem is likely faulty capacitors on your logic board which is part of the Midplane. Power supply could also be a problem. When we bought our iMac's the midplane and power supply were user installable parts. This no longer applies. There are very few user installable parts now, see: http://docs.info.apple.com/article.html?artnum=86812
The midplane has many parts and now instead of replacing the whole thing only the faulty parts are being replaced. Sometimes running diagnostics are better done in a repair facility. Various tests were done on mine over a 4 day period.
Speak with Apple Customer Relations they may be able to help you with this or speed up the process. I was able to take mine to the Apple Authorized Service Provider of my choice.
Liz
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