“ ” on page 56
CAUTION: 
Make sure that all server power cords are disconnected from their power sources before performing 
this procedure.
Before you remove an upper fan cage: 
1.  Remove the front cover. See “Remove the front cover” on page 322.
2.  Remove the upper compute tray or storage tray. See “Remove a compute tray” on page 305 or 
“Remove a storage tray” on page 375.
3.  If you removed a compute tray and it has one or more compute system boards or a system board filler 
installed, remove the system boards or system board filler. See “Remove a system board” on page 309
or “Remove a system board filler” on page 312.
4.  Turn the tray upside down.
Complete the following steps to remove an upper fan cage.
Watch the procedure. A video of the installation process is available: 
• 
YouTube
•  Youku
Figure 83. Upper fan cage removal
Appendix B. Component reference 315