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

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How to replace mini Displayport of an iMac 21.5" with a 27"?

I know that you cannot connect any external source to the iMac 21.5" to use its display. But the 27" mini displayport offers input so that you can connect, for example, your PS3 to it and use it as a display. My question is this:

How do you replace your mini displayport on an iMac 21.5" with the mini displayport of an iMac 27" and would it accept input?

Answered! View the answer I have this problem too

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It's not related to the port itself rather than to the graphics card. The 27" iMac features an special card that accepts input from a mini displayport, something similar to a video capture device. Which, in turn, may be a solution for you.

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+ good answer, could you provide a supporting link for this?


Apple T/N on DisplayPort & Target Display Mode: Apple Mini DisplayPort adapters: Frequently asked questions (FAQ) & Use your iMac as a display with Target Display Mode

And here more on Target Display Mode: The Ins and Outs of Your iMac’s Target Display Mode and lastly the loss of it in the newer iMac's: iMac Target Display Mode No More


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