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

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My screen is fuzzing with pixels and small numbers

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Need help, my Imac stopped working mld use, initially whitce sceen, but when trying to rwboot pixels and intermittent numbers. No safe mode availableHave tried to install OS, but stalling

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Can you take a few pics of the screen with your phone so we can see what you mean Adding images to an existing question


Have done now, thought I had done it


I believe it will be earlier model, no sign of any markings sorry!!




iMac 20 inch core 2 duo 2.66??


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Do you have access to an external display which you can plug in via DVI port on the system. Does it look clean? If it does then you have a bad display assembly and/or the displays data cable. If the image is the same then the logic boards GPU logic has an issue.

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Dan, I actually have no idea what version I have, so apologies for confusion caused, it’s an older model. Unsure if I can display externally sorry ?

Hopeless information, novice to this sorry :(


@scosser73 if you can place here SERIAL NUMBER (will be somewhere on iMac - ) by this we will know what model you have :) - not sure if it's 5K as the installation is for El Capitan (if I remember right) :)


Have no idea where serial number is as nothing to be seen on exterior of case


@scosser73 - The S/N is on the bottom of the foot, you can plug it into here EveryMac - Lookup let us know what you have and then we can move forward!


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