I got my Red Fury yesterday. I actually have quite a few problems with them. One of them has a component fell off (picture). As I am not into electrical thingy, I do not know what it is. I hope anybody can tell me what it is and does it have any effect on the miner itself? So far, I am able to hash it just fine but I doubt it is going to last me long. Also, 4 out of 5 of them have very high HW about 30% while the other one has only about 3%. I wonder is it normal for Red Fury to have such high HW or I am missing anything here? I am running Bfgminer 3.9.0 off a raspberry pi with raspbian wheezy. Any help will be kindly appreciated. Please do let me know if I miss out anything. Thank you in advanced.

http://i.imgur.com/NvvTMDG.jpg