Epson EL 486UC - Manual (Page 82)

Connecting the Hard Disk Drive Cables
To connect the hard disk drive to the computer, you need to
connect two cables: the hard disk drive ribbon cable and a
power supply cable.
The hard disk drive ribbon cable is attached to your system
board. If you need to remove it for any reason, see “Connecting
the drive cable to the system board,” below, for instructions on
reconnecting the cable to the system board. Otherwise, see
page 5-6 for instructions on connecting the ribbon cable and
power supply cable to the drive.
You should connect both the hard disk drive ribbon cable and
the power supply cable to the drive before you secure it with
the mounting bracket. You will not be able to attach them once
the bracket is in place.
Connecting the drive cable to the system board
If you need to connect the hard disk drive ribbon cable to the
system board, follow the steps below. (If the hard disk drive
ribbon cable is already attached to the system board, see
“Connecting the drive and power cables to the drive”on
page 5-6.)
1. Locate the hard disk drive ribbon cable; it is a flat cable with
a connector on each end and an additional connector on the
ribbon cable.
system board hard disk drive
connector connector
red wire
5-4 Installing and Removing Drives