Epson Endeavor 468C - Manual (Page 91)

Removing the Option Card Connector Board
You may want to remove the option card connector board to
access certain components on the main system board, such as
the disk drive controllers. Follow these steps:
1. Remove any option cards. (See the instructions above.)
2. Remove the retaining screw securing the bracket on the
option card connector board to the power supply.
3. Pull the board straight up and out of its socket and set it aside.
4-20 Installing and Removing Options