So the title says it pretty well. I'll be upgrading my current cMP (flashed 5,1) from the base e5520 2.26Ghz processors to x5677 3.46Ghz. My incredible wife actually got them for me in a 5 part anniversary gift, and they showed up today. Thanks to my ebay search history, for her research! So this isn't about me asking how to go about this, as I've done a ton of research on this long before knowing that I was getting new processors. I'll be going down the road of the delidding process using a method such as the one on this thread https://forums.macrumors.com/threads/4-1-cpu-upgrade-pre-delidding-test.1997401/#post-23578030 The point of this new thread is to share my experience, and open another opportunity for others to share theirs, if they're so inclined. I will update with my results upon completion. Thanks to anyone that shares. --- Post Merged, Oct 16, 2017 --- One thing that I did want to ask that I haven't seen in all my research: Can I use a soldering iron for the delidding? Would I get enough heat? Or would I get enough heat quick enough to avoid baking the processor?