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Model A1312 / Mid 2011 / 2.7 & 3.1 GHz Core i5 or 3.4 GHz Core i7 Processor, ID iMac12,2

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AMD HD 6770M upgrade is posible?

i'm triying to figure out if is possible to upgrade my current graphic card (AMD HD Radeon 6770M, 512 MB) replacing it by a better one. My iMac dates from mid 2011 with 27 inches screen. If is posible what card could be a good replacement?

Thanks in advance

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Try a search for this part:

27" iMac (Mid 2011) AMD Radeon HD 6970M 2GB Video Card

Item #: 661-5969 1009267

Replacement, 27" iMac (Mid 2011) AMD Radeon HD 6970M 2GB Video Card

http://www.welovemacs.com/6615969.html

See @danj answer here:

How to replace the video card?

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Sorry, your system does not have a replaceable graphics card.

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8 Comments:

Are you pretty sure? =(

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The last one I opened up had a soldered MXM board.

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Wait... they SOLDER the MXM card DIRECTLY TO THE BOARD?

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I was surprised too! It was a system being returned from a field office in Asia. Instead of the pin header you'ed expect it was soldered pins!

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The thing has a MODULAR MXM slot on the board there and populated, yet they SOLDERED the card to the board....

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Somebody has done it: https://forums.macrumors.com/threads/201...

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would an external gpu work? There is nothing wrong with mine, other than I cannot play Blizzard games now :/ thanks to them upgrading their coding to Metal 2

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I don't think it would. High Sierra has introduced eGPU support as long as it connected through Thunderbolt 3 port. iMac mid 2011 doesn't even has a USB 3 port...

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The 27-inch (Mid-2011) does not have a soldered GPU board. It’s attached to the logic board but on the back side. To remove, you loosen the logic board, detach the GPU cooling heatsink from the bracket and remove two screws holding the GPU to the logic board bracket. It slides right out of the board socket.

I figured all that out and tried to replace my shaky board with what should be a working HD6770M and all I get is a black screen. Ugh. Old shaky board goes back in and I’m back where I started - pixelated primary and secondary screens. One of the heatsink screws was flopping around in there right up against the GPU terminals so maybe I just got a bad replacement board.

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frankgumeta will be eternally grateful.
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