Dell PowerEdge C6220 Hardware Owner's Manual page 185

Figure 3-48. Installing and Removing a Memory Module
1 memory module
3 memory module socket ejector (2)
6
Press down on the memory module with your thumbs to lock the
memory module into the socket. See Figure 3-48.
When the memory module is properly seated in the socket, the ejectors
on the memory module socket align with the ejectors on the other
sockets that have memory modules installed.
7 Repeat step 4 through step 7 of this procedure to install the remaining
memory modules in the approved configurations. See Table 3-2 and
Table 3-3.
8 Replace the system-board assembly. See "Installing a System-Board
Assembly" on page 125.
9
Start up the system, press <F2> to enter the System Setup program,
and check the System Memory settings on the main System Setup
screen.
The system should have already changed the value to reflect the newly
installed memory.
2 memory module socket
Installing System Components | 185