Epson Endeavor L User Manual page 111

3. Select the connector on the end of the longest part of the cable
(the main system board connector). Notice the small tab in
the middle of the cable connector, as shown in the
illustration above. Align the connector so that the tab aligns
with the notch, as shown below. (The option card connector
board and diskette drive ribbon cable are removed from the
illustration for clarity.)
4. Make sure the holes in the cable connector fit over all the
pins in the system board connector; then push in the cable
connector.
Caution
If you do not correctly align the holes with the pins, you
could severely damage your system board when you
push in the cable connector.
5-30 Installing and Removing Drives
notch