Adding Memory - Sony Vaio PCG-R505DL Service Manual

Adding Memory

In the future you may want to install memory modules to expand the
functionality of your notebook. The amount of memory on your notebook
will vary depending on the model you purchased. Expansion memory
modules are available as options. For memory upgrades, use only
unbuffered PC133 (CL2) SDRAM SO-DIMM (gold lead contacts). This
section describes how to replace memory modules in your computer:
Precautions and Procedures
Installing a Memory Module
Removing a Memory Module
Viewing the Amount of Memory
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