Dell Latitude D631 (Early 2009) - Manual (Page 122)

122 Adding and Replacing Parts
2 Turn the computer bottom-side up, loosen the captive screw in the memory module cover, and then
remove the cover.
NOTICE: To prevent damage to the memory module connector, do not use tools to spread the memory-module
securing clips.
3 If you are replacing a memory module, ground yourself and remove the existing module:
a Use your fingertips to carefully spread apart the securing clips on each end of the memory module
connector until the module pops up.
b Remove the module from the connector.
1 memory module cover 2 captive screw
1
2