SSD Install

[Cheyenne4]

Where is the socket on the motherboard for the second M.2 PCIe SSD?  This computer is supposed to have two 2.5" drives bays and two M.2 sockets.  Cannot find but one M.2 socket.

[Huffer]

You probably have already seen the Service manual:

Manual

I fear it is more complex than you think and you cannot have 2 x 2.5 inch drives and 2 x M.2 disks...only 1 of either and 2 of the other. 

Look at p. 3 and see the disclaimers about certain storage options not being available if others are selected. 

I only see one actual M.2 slot in the diagrams

[Cheyenne4 · Accepted solution]

There is a second M.2 connector.  It is located  next to the primary 2.5" drive and is partially hidden by the black tape that covers the area of both 2.5" drives.