Attention: 
•  Read “Installation Guidelines” on page 121 and “Safety inspection checklist” on page 122 to ensure that 
you work safely.
•  Make sure that all cables, adapters, and other components are installed and seated correctly and that you 
have not left loose tools or parts inside the server.
•  Make sure that all internal cables are correctly routed. See Chapter 3 “Internal cable routing” on page 57.
Watch the procedure. A video of the installation and removal process is available: 
•  YouTube: 
https://www.youtube.com/playlist?list=PLYV5R7hVcs-BXei6L6c05osQVLt4w5XYx
•  Youku: https://list.youku.com/albumlist/show/id_59636529
Procedure
Step 1.  Install the top cover. 
a. 
Align the top cover guide holes with the guide pins on chassis; then place the top cover on 
top of the server.
b. 
Press down the top cover latch to lock the top cover in place. 
Figure 158. Installing top cover
After you finish 
Complete the parts replacement. See “Complete the parts replacement” on page 328.
4-DW GPU Model / 8-DW GPU Model components
Follow instructions in this section to remove and install the 4-DW GPU Model and 8-DW GPU Model 
components.
Chapter 4. Hardware replacement procedures 227