Dell Latitude D631 (Early 2009) User Manual
Page 123

Adding and Replacing Parts
123
NOTICE:
Insert memory modules at a 45-degree angle to avoid damaging the connector.
4 Ground yourself and install the new memory module:
NOTE:
If the memory module is not installed properly, the computer may not boot properly. No error message
indicates this failure.
a
Align the notch in the module edge connector with the tab in the connector slot.
b
Slide the module firmly into the slot at a 45-degree angle, and rotate the module down until it
clicks into place. If you do not feel the click, remove the module and reinstall it.
5 Replace the cover.
NOTICE:
If the cover is difficult to close, remove the module and reinstall it. Forcing the cover to close may
damage your computer.
1 securing clips (2 per connector)
2 memory module
2
1