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iMac problem (power surge - hardware failure)

Posted on 2004-10-21
Medium Priority
Last Modified: 2013-12-27
Hi sorry if this is in the wrong place, but it seems to be the only Mac hardware related forum.  I've had pretty good luck with EE before so I thought I give it another shot.

Anyway, here's the situation.  I have an iMac that I was working on that I believe had a power surge.  The result is a dead iMac, won't boot to CD-Rom and fried the harddrive.

The System:

500Mhz Slot Loading
Model M5521

Post surge symptoms and troubleshooting:

Computer turns on to Blank Aqua Screen
Harddrive clicking (definately toast)
Won't boot to Mac OSX CD

Things I've tried

Replaced harddrive (toasted it as well - started clicking almost immediately)
Replaced power supply (No change)
Replaced logic board (No change)

I still haven't replaced the harddrive again yet, as I'm just trying to get the computer to boot to Mac OSX CD (I didn't want to fry another drive)  Can an iMac boot to CD-Rom without a working harddrive?

I don't know a whole lot about Mac hardware, so I'm kind of at a loss as to what I can try next.  This is a clients computer so, and it was surged while in my possession, so I really need to get it up and running again.

What else should I try, what other hardware would I be concerned about after a power surge?  

Thanks for any assistance you can provide, and let me know if you need further details on anything.


Question by:jb1013
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Accepted Solution

jonkreisler earned 1200 total points
ID: 12373554
A power surge can fry almost any component. If the modem was connected to a phone line, that may be fried also.
If the CD/DVD drive is still good, it should be able to boot while holding down the "C" key.
Failing that, you can also try holding down the combination "Apple" + "Option" + "Shift" + "Delete" during boot.
Presuming you have a bootable CD (such as an original Mac OS CD) it should not require a working Hard Drive.

Assisted Solution

macdmz earned 300 total points
ID: 12405589
when you start the mac what sound does it make?

1, 2, 3, 4 or 5 tones?

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