Epson EL 486UC 用户手册

Locate the hard disk drive connector on the system board.

Position one of the end connectors so that the red wire

aligns with pin 1 of the connector on the system board.

There 

is 

a “1” printed on the system board to identify pin 1.

Make sure the holes in the cable connector fit over the pins

in the system board connector; then push in the cable

connector.

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.