Adding memory, Related safety guidelines – Sony PCG-R505TEK User Manual
In the future you may want to install memory modules to expand the
functionality of your computer. If your notebook has 64 MB of memory,
you can increase memory to 192 MB; if your notebook has 128 MB of
memory, you can increase memory to 256 MB. For memory upgrades,
use only PC100(CL2) SDRAM SO-DIMM (gold lead contacts).
Related Safety Guidelines
The procedures described below assume familiarity with the general
terminology associated with personal computers and with the safety
practices and regulatory compliance required for using and modifying
Disconnect the system from its power source and from any
telecommunications links, networks, or modems before you open the system
or follow any of the procedures described below. Failure to do so may result
in personal injury or equipment damage.
Electrostatic discharge (ESD) can damage disk drives and other components.
Perform the procedures described below only at an ESD workstation. If such
a station is not available, do not work in a carpeted area, and do not handle
materials that produce or hold static electricity (cellophane wrappers, for
Sony recommends memory upgrades be performed by an authorized Sony
Service Center or Sony authorized agent. To find the nearest center or agent,
Make sure that you observe the proper safety precautions when you install a
memory module in your computer. See the bulleted list below. Be careful
when adding memory. Mistakes when installing or removing a memory
module may cause a malfunction.