Dell PowerVault NX3500 Hardware Owner's Manual page 68

Figure 2-10. Replacing a Memory Module
1 memory module
3 alignment key
6 Align the new memory module's edge connector with the alignment key of
the memory module socket, and insert the memory module in the socket.
NOTE:
install the memory module in the socket in only one way.
7 Press down on the memory module with your thumbs to lock the memory
module into the socket.
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.
8 Repeat step 5 through step 8 of this procedure to install the remaining
memory modules.
9 Replace the cooling shroud. See "Installing the Cooling Shroud" on
page 63.
10 Close the system. See "Closing the System" on page 53.
68
Installing System Components
The memory module socket has an alignment key that allows you to
2 memory module socket ejectors (2)
1
2
3