Epson EQUITY 386SX/16 PLUS - Manual (Page 146)

Then place the flat side of the mounting plate on the
hard disk drive and align the four holes on the plate with
the four holes on the drive, as shown below.
mounting
plate holes
comp
connectors
4. Locate the four screws that you removed from the
mounting frames and use them to secure the
mounting plate to the hard disk drive.
Installing the Drive
Follow these steps to install the hard disk drive in the vertical
mounting position:
1. Locate the hard disk drive ribbon cable that came with
your computer. It is a flat cable with three connectors on
it (one on each end and one in the middle).
B - 1 2
Installing and Removing Disk Drives