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Memory Module(s)
Dell™ Vostro™ 420/220/220s Service Manual
Removing Memory Modules
Replacing or Adding a Memory Module
CAUTION: Before working inside your computer, read the safety information that shipped with your
computer. For additional safety best practices information, see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
Removing Memory Modules
1. Follow the procedures in Before Working on Your Computer.
2. Remove the computer cover (see Replacing the Computer Cover
).
3. Locate the memory modules on the system board (see System Board Components
).
4. Press out the securing clip at each end of the memory module connector.
1 securing clips (2) 2 memory module connector
5. Grasp the module and pull it upwards.
If the module is difficult to remove, gently ease the module back and forth to remove it from the connector.
Replacing or Adding a Memory Module
NOTICE: Do not install ECC memory modules.
NOTICE: If you remove your original memory modules from the computer during a memory upgrade, keep
them separate from any new modules, even if you purchased the new modules from Dell. If possible, do
not pair an original memory module with a new memory module. Otherwise, your computer may not start
properly. The recommended memory configurations for Vostro 420 are:
1) A pair of matched memory modules installed in DIMM connectors 1 and 2, or
2) A pair of matched memory modules installed in DIMM connectors 1 and 2 and another matched pair
installed in DIMM connectors 3 and 4.
NOTE: If you install mixed pairs of PC2-5300 (DDR2 667-MHz) and PC2-6400 (DDR2 800-MHz) memory modules, the
modules function at the speed of the slowest module installed.
NOTE: Ensure that you install a single memory module in DIMM connector 1, the connector closest to the processor,
before you install modules in any other connector.
NOTE: Vostro 420 can accommodate four DIMMs; Vostro 220 and Vostro 220s can accommodate two DIMMs.
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