Model A1311 / Late 2009 / 3.06 or 3.33 GHz Core 2 Duo processor

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Screen just turned like this a week ago.. my other iMac today!! What is wrong? Two on the same week?'

Serial nr. iMac "Core 2 Duo" 3.06 21.5-Inch (Late 2009)

W8943ARXB9U

Checked the ram without result!

Cheers!

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Have you reseated the RAM? Bad or improperly seated RAM can cause strange display anomalies like that. First thing I would try.

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Yes.. no improvement!

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This is a graphics card issue. you could find on ebay a remplacement one if is still worth the trouble for this type of iMac.

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