i had the same problem with an s754 3000+. it arrived that way, and ZZF would not RMA it since it had a broken pin. i stated well, it came with that way, what was i to do? they assured me it wasn't... whatever. i mean, the pin was about 3 rows in, and none of the pins around it were damaged/bent. how the hell was i supposed to have accomplished that?
anyway, i used a paperclip - cut it to length so it sat in the socket and pushed up against the cpu when the cpu was installed, and it's been running fine for almost 2 yrs now....