Dell PowerEdge C8000 - Manual (Page 286)

286 Installing System Components
If you are permanently removing a processor, you must install a socket
protective cap in the vacant socket to protect the pins and keep the socket
free from dust.
NOTE: In single processor configurations, a processor must be installed in socket
CPU1. Install the blanks in socket CPU2 only.
Figure 3-99. Removing and Installing a Processor
1 processor alignment mark (triangle) 2 processor
3 processor shield 4 hook-shaped socket-release lever
5 processor socket 6 socket key (4)
7 bent load lever 8 alignment notch
2
3
4
5 6
8
1
7