Model A1224 / Mid 2007 and Early 2008 / 2, 2.4, or 2.66 GHz Core 2 Duo processor

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Logic Board or Power Supply or Hard disk Failure?

Hi all,

My iMac EMC 2210 is unable to boot at all.

Trying to find out whether it's a logic board or power supply failure.

I have just replaced my hard disk approximately 1 year ago but I am not writing it off the equation.

Pressed the power button but has no chime nor visual.

I could hear the fan sound (but couldn't be sure if it's the fan or hard disk).

Any guidance is greatly appreciated.

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Update / Additional Info

I left the iMac off for a couple of hours and managed to boot it for now.

Is it overheating ?

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Can you give us the last three digits of your systems serial number so we can correctly identify your system.

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Hi Dan,

Thanks for the prompt reply.

Last 3 digit of serial is ZE3

Model 1224 , EMC 2210.

Didn't manage to use Temperature gauge pro due to my comp is officially dead once more.

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Apple iMac "Core 2 Duo" 2.66 20-Inch (Early 2008) Specs

Identifiers: Early 2008 - MB324LL/A - iMac8,1 - A1224 - 2210

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To check if the system is over heating you'll need to install an app which can read the fan & temp sensors in your system. Give this app a try: Temperature Gauge Pro There are others but I have found this one to be one of the best. Let us know what you find after running it.

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Hi Dan, Thanks for the prompt reply. Last 3 digit of serial is ZE3 Model 1224 , EMC 2210. Didn't manage to use Temperature gauge pro due to my comp is officially dead once more.

Chee Yong Koo, 11 hours ago

Apple iMac "Core 2 Duo" 2.66 20-Inch (Early 2008) Specs Identifiers: Early 2008 - MB324LL/A - iMac8,1 - A1224 - 2210

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Starting to should like your power supply has issues. At this point I think you'll need to open the system up to inspect things. Are you up to that? Review the IFIXIT guides and setup your work area if you haven't already.

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Yes, I am ready to open up. Any guide is appreciated.

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Follow this link: iMac 20" repair guides

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Thanks for the guide.

I have no issues replacing the hardware as required but the main issue here is that I couldn't rectify if it is a Power Supply failure or Logic Board.

Any ideas?

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Chee Yong Koo will be eternally grateful.
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