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Released October 24, 2011 / 2.2, 2.4, or 2.5 GHz Quad-core Intel Core i7 Processor

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No video after resetting SMC and PRAM

Hey all...

I have a late 2011 MacBook Pro that has had the graphics card replaced through Apple's replacement program. Just the other day however when I opened the computer there was no video. I can hear the fans spinning, but I can't hear any other activity (of course I have an SSD so there's not much other activity to hear).

I have done all the recommended things on the Internet such as resetting the PRAM and SMC. I took out the memory modules and powered it on and am hearing the error beeps.

The computer makes the chimes when I power it on and the keyboard lights up but there is nothing after that. I am happy to replace some of the hardware myself if I know what the issue is but I'm having a hard time nailing it down from help forums and past issues that others have had.

Thanks for your help.

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Could you try hooking it up to an external TV to see if you get any image on there? If it works, the problem could be the screen itself.

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sorry the PRAM didn't work for you. Try an external monitor as suggested above or try target disk mode to test the screen and startup for us.

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Yes, I tried the external monitor as well and nothing. Any thoughts?

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How are the logic boards from ifixit or other vendors? Will they have the same issue? Thank you for the help.

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Try on re-installing the RAM one at a time then power up, might be 1 RAM faulty.

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Dead GPU. This is the model that has tons of GPU issues. Even if it outputs to external it is still the GPU. The gpu creates the LCD_EN signal to turn on the LCD. Unfortunately there is nothing you can do. Even apple's refurb boards will have this issue.

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What about the GPU's from other places like ifixit or other places online. Will those have the same issues?

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All 820-2915/14 boards will have this issue.

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Jason Coon will be eternally grateful.
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