Chosen Solution
I bought a used iMac for parts off of Craigslist. I replaced the PSU and it’s still not running. The Genius’s claim it’s the logic board and unfortunately eBay isn’t turning up ANY results for 2010 logic boards. However, there is a Late 2009 i5 logic board: http://www.ebay.com/itm/661-5428-Logic-B… Would I be able to swap out the one I have (which I believe is a 3.2GHZ i3) with this one? They have the same model number attached (A1312)…it would save me a ton of money rather than going through a service shop and spending upwards of a thousand dollars.
With the models being the same and both boards being “i” processors rather than a Core 2 Duo, I would say your odds are very good. For a better answer, I would contact www.welovemacs.com and ask them if this board - http://www.welovemacs.com/6615428.html - will work in your machine. PS give them the last four figures of your serial number when asking.