Dell PowerEdge NM176 Hardware Owner's Manual page 83

5 Press down on the memory module with your thumbs while pulling up on
the ejectors with your index fingers 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.
6 Repeat step 2 through step 5 of this procedure to install the remaining
memory modules. See Table 3-1 for valid memory configurations.
7 Close the system. See "Closing the System" on page 55.
8 (Optional) Press <F2> to enter the System Setup program, and check the
System Memory setting on the main System Setup screen.
The system should have already changed the value to reflect the newly
installed memory.
9 If the value is incorrect, one or more of the memory modules may not be
installed properly. Repeat step 1 through step 8 of this procedure, checking
to ensure that the memory modules are firmly seated in their sockets.
10 Run the system memory test in the system diagnostics. See "Running the
System Diagnostics" on page 117.
Installing System Components
83