HP ProDesk 405 G1 Microtower Hardware Reference Manual page 21

6. Open both latches of the memory module socket (1), and insert the memory module into the
socket (2).
NOTE: A memory module can be installed in only one way. Match the notch on the module
with the tab on the memory socket.
7. Push the module down into the socket, ensuring that the module is fully inserted and properly
seated. Make sure the latches are in the closed position (3).
8. Repeat steps 6 and 7 to install an additional module.
9. Replace the computer access panel.
10. Reconnect the power cord and turn on the computer.
11. Lock any security devices that were disengaged when the access panel was removed.
The computer should automatically recognize the additional memory the next time you turn on the
computer.
Installing additional memory 15