Hardware Reference Guide - Small Form Factor Models

8. Open both latches of the memory module socket (1), and insert the memory module into the socket
(2).
Figure 2-10 Installing a DIMM
NOTE: A memory module can be installed in only one way. Match the notch on the module with
the tab on the memory socket.
A DIMM must occupy the XMM4 socket. Always populate XMM4 before XMM2, and XMM3 before
XMM1 (populate the black sockets before white sockets in each channel).
In order to create a dual-channel memory configuration, the memory capacity of XMM4 must equal
the memory capacity of XMM3 (and XMM2 must equal XMM1, if used). Refer to
Populating DIMM
Sockets on page 17 for more information.
9. Push the DIMM module down firmly into the socket, ensuring that the module is fully inserted and
properly seated. The DIMM must be pushed all the way down into the socket and sit evenly in the
socket to avoid memory corruption. Make sure the latches are in the closed position (3).
10. Repeat steps 8 and 9 to install any additional modules.
11. Replace the access panel.
12. If the computer was on a stand, replace the stand.
13. Reconnect the power cord and turn on the computer.
14. 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.
ENWW Installing Additional Memory 19