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How hard is it to replace the logic board on a mid-2011 27" iMac? My local Apple Authorized Service location wants $1,700 to replace it! I think I can get the part from eBay for around $600, but it comes without the CPU. Is that hard to swap out?
It is and Advanced DIY project - you basically have to completely dismantle and reassemble the entire machine. There are about 29 steps (this guide is similar to what you have to do). Be sure to purchase the recommended tools, every job goes easier when you use the correct tools. If this Answer is helpful please remember to return and mark it Accepted.