Lenovo 23539KU manual Replacing devices, Static electricity prevention, Replacing the battery

Chapter 6. Replacing devices

This chapter provides instructions on how to install or replace some hardware for your computer.

•“Static electricity prevention” on page 67

•“Replacing the battery” on page 67

•“Replacing a memory module” on page 69

•“Replacing the hard disk drive or solid state drive” on page 72

•“Replacing the keyboard” on page 74

•“Replacing a PCI Express Mini Card for wireless LAN/WiMAX connection” on page 78

•“Replacing a PCI Express Mini Card for wireless WAN connection” on page 85

•“Replacing the Serial Ultrabay Slim device” on page 92

•“Replacing the SIM card” on page 92

•“Replacing the backup battery” on page 94

Static electricity prevention

Static electricity, although harmless to you, can seriously damage computer components and options. Improper handling of static-sensitive parts can cause damage to the part. When you unpack an option or CRU, do not open the static-protective package containing the part until the instructions direct you to install it.

When you handle options or CRUs, or perform any work inside the computer, take the following precautions to avoid static-electricity damage:

•Limit your movement. Movement can cause static electricity to build up around you.

•Always handle components carefully. Handle adapters, memory modules, and other circuit boards by the edges. Never touch exposed circuitry.

•Prevent others from touching components.

•When you install a static-sensitive option or CRU, 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 from the package and your body.

•When possible, remove the static-sensitive part from the static-protective packaging and install the part without setting it down. When this is not possible, place the static-protective packaging on a smooth, level surface and place the part on it.

•Do not place the part on the computer cover or other metal surface.

Replacing the battery

Before you start, print these instructions.

This system supports only batteries specially designed for this specific system and manufactured by Lenovo or an authorized builder. The system does not support unauthorized batteries or batteries designed for other systems. If an unauthorized battery or a battery designed for another system is installed, the system will not charge.

Attention: Lenovo has no responsibility for the performance or safety of unauthorized batteries, and provides no warranties for failures or damage arising out of their use.

© Copyright Lenovo 2012 67