The iMac is Apple's line of all-in-one desktop computers.

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When I turn on my iMac the power light comes on but that is all

When I power up the iMac the power light on the front comes on. I can hear teh DVD drive spinning up as well as the hard drive. The screen remains blank. How do I diagnose whether this is a video board, logic board or display issue? What are my replacement options on each of the above items.

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Which Model do you have? What is the model number, this will be on the back, or on the bottem, and will be like A**** or M****

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Try seeing if you can run the Apple Hardware Test. You can also try connecting to an external display, booting in target disk mode, and booting from the install disk.

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