The iMac G5, powered by the PowerPC G5 processor, was originally released in 2004.

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Blue Screen on iMac

after grey screen computer hangs on blue screen.

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It is not completing the boot sequence. See if it will boot from the original system installation disk. If so, go to the second screen pull down menu to Utilities -> disk utility and see if you can repair the hard drive.

UPDATE

Here's a list of serial numbers on the machines that have capacitor problems.

Does your computer fall into this group?

Serial Number ranges:

W8435xxxxxx – W8522xxxxxx

QP435xxxxxx – QP522xxxxxx

CK435xxxxxx – CK522xxxxxx

YD435xxxxxx – YD522xxxxxx

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+ great information

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Yes indeed. The serial number is W8444xxxxxx. Is this important?

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This machine falls into the bad capacitor issue group. Open the unit and inspect the capacitors for swelling and/or corrosion. Poor luck has been had with replacing these caps. Power supply replacement will generally keep the machine running for another year if it goes first. To know the problem look at the diagnostic LEDs on the motherboard. There is a wealth of information on this site about this issue, do a search for capacitor. also check at www.jimwarholic.com

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Insert your restore disk and try to run a diagnostic on the hardware. Sounds like your harddrive might be dying on you.

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After doing that it says, video RAM problem.

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Then your Video RAM aka Graphics card has gone bad

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Could be the old iMac G5 capacitor problem. Use search on other posts regarding this topic.

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I think it is my logic board.

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danielsd will be eternally grateful.
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