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Imac intel 17inch a1208 no booting, no chime

My imac intel 17inch iget no booting, no chime sound just heavy fan i have opened it i three 123 led lights at the back are on ligh at botom of screen is on when switched on

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Posted on Jan 02, 2017

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SOURCE: iMac 24 intel no startup sound_black screen_but light is on

Try inserting the master (system) disc that came with it and hold down the "C" key while booting. If it comes on with the OS X installer, try disk utility to reset permissions, if that fails to solve it, start again and this time when you get the install disc up get to options and do archive and install. If that has no effect, get out your Apple Care ( you do have it don't you?) and take /send it to Apple.

Posted on Aug 19, 2009

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SOURCE: No chime no fan no screen on Imac G4 17', even

Could be a problem with the logic board. If you have Applecare, take it to an Apple store and they might be able to fix it. Otherwise, it may be dead.

Posted on Mar 07, 2011

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SOURCE: I have a 21.5" iMAC Intel Core i3 that will not

Hold the c key while booting to boot from a CD.

Posted on Mar 09, 2011

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Hi there,
First off, would it be possible for you to give us a little more detail on the problem, such as, does the finder open? is your dock onscreen? does your wallpaper appear?
As far as i can see, your best bet woud be to reboot your imac with the OSX disk in. Then boot your computer and before you hear the chime hold down the C key on your keyboard. this will boot from the disk. Once it has loaded, select your language, and then go to the utilities menu at the top and find disk utility. open it and run repair disk and repair permissions.
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