4. Locate the memory module sockets on the system board. See Figure6-2.
5. Press the ejectors on the memory module socket down and out, as shown in Figure3-25, to allow the memory module to be inserted into the socket.
6. Align the memory module's edge connector with the alignment key on the memory module socket, and insert the memory module in the socket.

Figure 3-25. Installing and Removing a Memory Module

7. 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.
8. Repeat step 3 through step 7 of this procedure to install the remaining memory modules.
9. Replace the memory cooling shroud. See Installing the Processor Cooling Shroud.
10. Close the system. See Opening the System.
11. (Optional) Enter the System Setup program, and check the System Memory setting on the main System Setup screen. See Entering the System Setup
Program.
The system should have already changed the value to reflect the newly installed memory.
12. If the value is incorrect, one or more of the memory modules may not be installed properly. Repeat step 2 through step 11 of this procedure, checking to
ensure that the memory modules are firmly seated in their sockets.
13. Run the system memory test in the system diagnostics. See Running the System Diagnostics.
Removing Memory Modules
1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet.
2. Open the system. See Opening the System.
NOTICE: Never remove the memory cooling shroud without first powering down the system. Overheating of the system can develop quickly resulting in
a shutdown of the system and the loss of data.
CAUTION: The DIMMs are hot to the touch for some time after the system has been powered down. Allow time for the DIMMs to cool before
handling them. Handle the DIMMs by the card edges and avoid touching the DIMM components.
NOTE: The memory module socket has two alignment keys that allows you to install the memory module in the socket in only one way.
1
memory module
2
memory module socket ejectors (2)
3
socket
4
alignment keys (2)
NOTICE: Never operate your system with the memory cooling shroud removed. Overheating of the system can develop quickly resulting in a shutdown
of the system and the loss of data.
CAUTION: Many repairs may only be done by a certified service technician. You should only perform troubleshooting and simple repairs as
authorized in your product documentation, or as directed by the online or telephone service and support team. Damage due to servicing that is not
authorized by Dell is not covered by your warranty. Read and follow the safety instructions that came with the product.