Epson Progression U12 - Manual (Page 102)

4. When you are sure the pins and holes are aligned correctly,
push the board into place, pressing evenly on all sides. Be
careful not to bend any pins.
5. Secure the port to the back of the computer with the two hex
screws you removed in step 1.
6. Refer to the VGA Utilities Guide for instructions on installing
video drivers for your new, higher resolutions.
Installing and Removing Options 3-33