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chamullar

macrumors newbie
Original poster
Nov 6, 2015
3
0
Hi All,

Just wondering if this is possible.

I have a mid-2011 iMac with a dead graphics card (presumably an AMD Radeon HD 6770M).

I also have a mid-2010 iMac, from which I've removed the working graphics card (ATI Radeon HD 5670).

I thought it would be a simple swap over but the 2011 iMac simply doesn't recognise the ATI Radeon HD 5670. No screen image and in system profiler it shows the graphics slot as being empty.

Is there something I can do to make this swap work?

Thanks in advance!

Cheers,
Ben
 

DeltaMac

macrumors G4
Jul 30, 2003
10,999
3,070
Delaware
I might have missed part of what you posted...
Let me re-state...
Your graphics card is dead, in mid-2011 iMac
Then you swapped a graphics card from a mid-2010 iMac to your 2011 iMac.
If you DON'T get any screen, then how do you see from the system profiler that the graphics slot is empty.
If you are using screen sharing from a different iMac, then I am NOT sure the older card will work in the newer Mac. I THINK you should get some kind of video. Drivers might not work quite right with that combination, but it should show _something_ in the slot, and not "empty"
Anyway, that leads me to believe that the graphics card is not the problem, but the logic board has failed.
 
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chamullar

macrumors newbie
Original poster
Nov 6, 2015
3
0
Hi DeltaMac, thanks for your reply.

Yep, I'm using screen sharing to see what's happening on the iMac when the screen's not working.

Shouldn't be the logic board - when the 6770M is installed it works intermittently and flashes on and off. And as I mentioned I can see everything working fine with screen sharing.
 
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DeltaMac

macrumors G4
Jul 30, 2003
10,999
3,070
Delaware
OK, but "everything" is not working fine, if the graphics card doesn't work.
It could be simply a compatibility issue, where the older cards just won't function with the newer chipset.

Have you tried a simple reseat - and test the "bad" card again in the iMac where it belongs?
 
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chamullar

macrumors newbie
Original poster
Nov 6, 2015
3
0
yeah, I've tried re-seating the bad card in the iMac. Same issues unfortunately.
 
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