check with AMD. if you tell them that the chip's pin was bent when recieved they may replace it for you. I'm assuming that the pin couldn't be bent back at this point. I've had alot of customers bend pins on processors and they are a ***** to bend back without breaking off. I'm not sure about AMD, but Intel will give you a hard time repacing processors that have broken or missing pins (p4's).
best of luck man :-/