Dell Inspiron 1521 (Mid 2007) - Manual (Page 153)

Adding and Replacing Parts
153
Removing the DIMM B Memory Module
The DIMM B memory module is located under the memory module cover on
the bottom of the computer.
1 Follow the procedures in "Before You Begin" on page 141.
2 Turn the computer upside-down, loosen the captive screw on the memory
module cover (see "Bottom View" on page 30), and remove the cover.
NOTICE:
To prevent damage to the memory module connector, do not use tools to
spread the memory module securing clips.
NOTICE:
To avoid electrostatic discharge, ground yourself by using a wrist
grounding strap or by periodically touching an unpainted metal surface (such as a
connector on the back of the computer).
3 Use your fingertips to carefully spread apart the securing clips on each end
of the memory module connector until the module pops up.
4 Remove the module from the connector.
1 memory module/coin-cell battery
compartment 2 captive screw
1
2