The screws that attach the socket to the motherboard, mayhaps?
View attachment 45337
Edit:these? (don't look like torx, though...)
Yes, those screws are Torx. Those were the ones I guess he partially unscrewed. I kinda doubt they would ship them that way but who knows.
Higher resolution here:
https://cdn.arstechnica.net/wp-content/uploads/2017/08/DSC03289.jpg
http://cdn.overclock.net/c/c3/c34f3320_DSC_0118.jpeg