HP EliteDesk 800 Hardware Reference Manual page 75

4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION:
power to drain before adding or removing memory modules. Regardless of the power-on state,
voltage is always supplied to the memory modules as long as the computer is plugged into an
active AC outlet. Adding or removing memory modules while voltage is present may cause
irreparable damage to the memory modules or system board.
5. If the computer is on a stand, remove the computer from the stand.
6. Remove the computer access panel.
WARNING!
components to cool before touching.
7. Open both latches of the memory module socket (1), and insert the memory module into the
socket (2).
NOTE:
with the tab on the memory socket.
Populate the black DIMM sockets before the white DIMM sockets.
For maximum performance, populate the sockets so that the memory capacity is spread as
equally as possible between Channel A and Channel B. Refer to
on page 65
8. 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).
9. Repeat steps 7 and 8 to install any additional modules.
10. Replace the access panel.
11. If the computer was on a stand, replace the stand.
12. Reconnect the power cord and turn on the computer.
13. Lock any security devices that were disengaged when the access panel was removed.
ENWW
You must disconnect the power cord and wait approximately 30 seconds for the
To reduce risk of personal injury from hot surfaces, allow the internal system
A memory module can be installed in only one way. Match the notch on the module
for more information.
Populating DIMM sockets
Installing additional memory 67