(Optional) SAS cable connectors do not fit through the right-side chassis
mid-wall. If you are removing SAS cables between the rear storage drive
backplane and front storage drive backplane, you first must remove the chassis
mid-wall. For instructions, see Step 11
Remove the Motherboard Assembly
Carefully remove the SAS cable bundles from the chassis mid-wall. Be careful
not to snag the cables on the server components.