[b]Expansion Port[/b]\n\nResponding to your question about whether the expansion port carries the power from the docking station cable into the notebook . . . the answer is "yes". Prior to getting my notebook power jack fixed (HP replaced the motherboard, under warranty . . . a non-issue as the notebook was only four months old), the way I got power to the notebook/battery was through the docking station cable. As for the name of the "screws", I do not have a clue . . . although it would certainly appear that the previous owner of your notebook seemed to alter the original hardware. Good luck!