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Sony VAIO Desktop User Guide
Upgrading your VAIO computer
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Upgrading memory
In the future, you may want to upgrade the memory installed on your VAIO by replacing / adding memory
modules. However, we recommend that you do not install them yourself unless you are familiar with
upgrading memory on a computer.
For memory upgrades, use only PC2100 (DDR266) DDR-SDRAM DIMM or PC2700 (DDR333) DDR-SDRAM
DIMM modules (depending on your model).
Be careful when adding memory yourself. Mistakes on installation or removal of the memory module may
cause a malfunction.
Electrostatic discharge can damage electronic components. Before touching a memory expansion board,
remember 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.