Model A1224 / Early 2009 / 2.66 GHz Core 2 Duo processor

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Swap Graphics card with a new one, possible?!

-What kind of iMac I have:

iMac Intel 20" EMC 2266

-What I have in my iMac:

NVIDIA GeForce 9400 256 MB graphics

-Long story short:

Bought Mac (excited!)

Have had Mac around 3 years (loving it!)

Screen went black (slightly able to see it running with hand held light pointed at it!)

Tried resetting (SMC) 3 times (no go!)

Now using a used monitor next to it in mirroring mode (which is how I am here typing this out!)

Upon a lot of reading some say graphics card might have busted somehow or just backlight issue (hoping a disconnect wire could fix it!)

Never actually seen anywhere about the graphics card being replaced, with same graphics card of course (not possible to upgrade, I already know!)


Answered! View the answer I have this problem too

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Thank you VERY much! I am going through with this and I will return to explain finished details.


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This sounds like a failed inverter to me (flashlight test). Iwould replace it, Apple part#922-8844.

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+ This is a backlight issue. Your video chip set is not involved, if it were you would not have a picture on the external monitor. Your GPU is soldered on the logic board, not designed to swap or upgrade. Mayer is giving you good advice. I would consider doing what he has mentioned.


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Charles Bartowski will be eternally grateful.
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