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Model A1311 / Mid 2010 / 3.06 & 3.2 GHz Core i3 or 3.6 GHz Core i5 Processor

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Why my iMac keep freezing with random lines?

Please i wanna know why my iMac is freezing almost everytime now with some weird little lines in the cursor (mouse). Sometimes after i manually turn off the mac and turn on again she still have the lines and she don't load.. I did almost everything i can from restore to check the disk permissions all of that and looks all good so idk why thats happening please i can't lose all this projects of my work :( hmu asap

Block Image

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I had the same problem a couple of years ago. I'd try replacing the video card on your model.

Here's how: iMac Intel 21.5" EMC 2389 GPU Card Replacement

Has artifacts attached to the desktop icons and mouse pointer..

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Houdini crwdns2934231:0crwdne2934231:0
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