Well dang, glad you mentioned this. Just removed the 7700 and have several bent pins from the looks of it. Thought I was careful but, it happened.It is very rare for an Intel processor to go bad.
One real possibility is that a pin in the cpu socket was damaged during the process.
They are delicate and specced for only 15 insertions.
When you go back to the 6600K examine the pins closely.
Any good tips for straightening? Or is the mobo just toast?