Dell Precision 7920 Rack Owner's Manual

Installing memory modules

Locate the appropriate memory module socket.
Open the ejectors on the memory module socket outward to allow the memory module to be inserted into the socket.
Align the edge connector of the memory module with the alignment key of the memory module socket, and insert the memory module in the socket.
CAUTION:Do not apply pressure at the center of the memory module; apply pressure at both ends of the memory module evenly.
NOTE:The memory module socket has an alignment key that enables you to install the memory module in the socket in only one orientation.
Press the memory module with your thumbs until the socket levers firmly click into place.
Repeat step 1 through step 4 of this procedure to install the remaining memory modules.

If applicable, install the air shroud.
To verify if the memory module has been installed properly, press F2 and navigate to System Setup Main Menu> System BIOS > Memory Settings. In the Memory Settings screen, the System Memory Size must reflect the updated capacity of the installed memory.
If the value is incorrect, one or more of the memory modules may not be installed properly. Ensure that the memory module is firmly seated in the memory module socket.
Run the system memory test in system diagnostics.