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Sony Notebook User Guide
Precautions
90
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Adding and removing memory*
In the future you may want to install memory modules to expand the functionality of your notebook.
256 MB of memory is preinstalled in one of the two available memory module bays (256 MB x 1).
When only 256 MB of memory is preinstalled, you can add an optional 256 MB memory module to increase
memory up to 512 MB.
For memory upgrades, use only PC200 (CL2.5) SDRAM SO-DIMMs.
Electrostatic discharge can damage electronic components. Before touching a memory expansion board,
ensure the following:
❑ Handle the memory module gently.
❑ The procedures described in this document assume familiarity with the general terminology associated
with personal computers and with the safety practices and regulatory compliance required for using and
modifying electronic equipment.
❑ Disconnect the system from its power source and from any telecommunication links, networks, or
modems before you open the system. Failure to do so may result in personal injury or equipment
damage.
❑ Electrostatic Discharge (ESD) can damage memory modules and other components. Install the memory
module 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 example).
Ground yourself by maintaining contact with an unpainted metal portion of the chassis while
performing the procedure.
❑ Do not open the memory module package until you are ready to install the module. The package
protects the module from ESD.
!
Use the special bag delivered with the memory module or wrap the module in aluminium foil to protect it from electrostatic discharge.
! Do not place the memory module in places subject to:
- Heat sources such as radiators or air ducts,
- Direct sunlight,
- Excessive dust,