Lenovo x3550 M4 Installation And Service Manual page 277

3. Touch the static-protective package that contains the new fan to any unpainted
metal surface on the server. Then, remove the new fan from the package.
Figure 165. Fan installation
4. Orient the fan over the fan slot in the fan assembly bracket so that the fan
connector aligns with the connector on the system board.
Chapter 6. Removing and replacing components
259