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Lenovo 30221CU - H230 CORE2DUO 500GB Desktop Hardware Replacement Manual Page 5

Lenovo 3000 h series hardware replacement guide v2.0.
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You can find the following information:
• CRU removal and installation information
• Publications
• Troubleshooting information
• Parts information
• Links to other useful sources of information
To access this information, go to http://consumersupport.lenovo.com.
Tools required
To replace some parts in your computer, you will need a flat-blade or Phillips
screwdriver. Additional tools might be needed for certain parts.
Handling static-sensitive devices
Static electricity, although harmless to you, can seriously damage computer
components.
When you are replacing a part, do not open the static-protective package
containing the new part until the defective part has been removed from the
computer and you are ready to install the new part.
When you handle parts and other computer components, take these precautions
to avoid static-electricity damage:
• Limit your movement. Movement can cause static-electricity to build up around
you.
• Always handle parts and other computer components carefully. Handle
adapters, memory modules, system boards, and microprocessors by the
edges. Never touch any exposed circuitry.
• Prevent others from touching the parts and other computer components.
• Before you replace a new part, touch the static-protective package containing
the part to a metal expansion-slot cover or other unpainted metal surface on the
computer for at least two seconds. This reduces static electricity in the package
and your body.
• When possible, remove the new part from the static-protective packaging, and
install it directly in the computer without setting the part down. When this is not
possible, place the static-protective package that the part came in on a smooth,
level surface and place the part on it.
• Do not place the part on the computer cover or other metal surface.

Hardware Replacement Guide
31039394_3000 H_HRG_EN_V2.0.indd2 2
2009.7.14 4:15:26 PM

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