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A1418 | EMC 2889 | Late 2015 | 1.6 GHz dual-core Intel Core i5 or 2.8 GHz quad-core Intel Core i5. Released October 13, 2015.

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No Display back light only - can't see icons wont display externally

Does anyone know if the GPU is upgradeable or replaceable? on the iFixit teardown, I cannot see where the GPU is on the logic board or whether it’s a replaceable part?

The issue is Currently, the iMac turns on and chimes and but no display, just backlight glow and can’t see any icons using a torch. It also won’t display externally using an external display port.

Any ideas?

Thank you

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Sorry, the last replaceable GPU MXM board model was in the 2011 models.

This model does not offer a dedicated GPU, it only offers the Intel HD Graphics 6000 or Intel Iris Pro Graphics 6200 which is within the CPU chip.

You’ll need a to replace the logic board. iMac Intel 21.5" EMC 2889 Logic Board Replacement

You’ll also need these tools:

  • Plastic Cards you should get two sets
  • iMac Opening Wheel or if you get the [produit lié absent ou désactivé : IF173-005-1] you’ll get the tool with it.
Image Plastic Cards


Plastic Cards


Image iMac Opening Wheel


iMac Opening Wheel


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Thanks Dan, this is what I was thinking.


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Craig sera éternellement reconnaissant.
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