Start routing the SATA cables that you have already attached to the
logic board up through the corner of the optical bay, following the
existing wires.
Here you see the proper routing of one of the SATA cables, behind drive
tray #1’s logic board connector. Make very sure you have the cables all
the way tucked in behind the connector before proceeding.
OWC Multi-Mount
Chapter 4 - Cable Installation
4 CABLE INSTALLATION