Installing the tape drive option
The following illustration shows how to install an optional tape drive.
To install a SATA or USB tape drive, complete the following steps:
System x3650 M3 Types 4255, 7945, and 7949: Installation and User's Guide
d. Make sure that the open side of the top EMC bracket faces away from the
server. To install the top EMC bracket, insert and tighten two M3 x 0.5
screws in the threaded holes in the chassis down into the top bracket.