Handling Static-Sensitive Devices; Removing The Cover - Lenovo 5458 Installation And Service Manual

You might have to have the server turned on while the cover is off, to look at
system-board LEDs or replace hot-swap components. Follow these guidelines when
you work inside a server that is turned on:
v Avoid wearing loose-fitting clothing on your forearms. Button long-sleeved
v Do not allow your necktie or scarf to hang inside the server.
v Remove jewelry, such as bracelets, necklaces, rings, and loose-fitting wrist
v Remove items from your shirt pocket, such as pens and pencils, that could fall
v Avoid dropping any metallic objects, such as paper clips, hairpins, and screws,

Handling static-sensitive devices

Use this information to handle static-sensitive devices.
Attention: Static electricity can damage the server and other electronic devices. To
avoid damage, keep static-sensitive devices in their static-protective packages until
you are ready to install them.
To reduce the possibility of damage from electrostatic discharge, observe the
following precautions:
v Limit your movement. Movement can cause static electricity to build up around
v The use of a grounding system is recommended. For example, wear an
v Handle the device carefully, holding it by its edges or its frame.
v Do not touch solder joints, pins, or exposed circuitry.
v Do not leave the device where others can handle and damage it.
v While the device is still in its static-protective package, touch it to an unpainted
v Remove the device from its package and install it directly into the server
v Take additional care when handling devices during cold weather. Heating

Removing the cover

Use this information to remove the cover.
Before you begin
Read the safety information in "Safety" on page v and "Installation guidelines" on
page 31.
shirts before working inside the server; do not wear cuff links while you are
working inside the server.
watches.
into the server as you lean over it.
into the server.
you.
electrostatic-discharge wrist strap, if one is available. Always use an
electrostatic-discharge wrist strap or other grounding system when working
inside the server with the power on.
metal surface on the outside of the server for at least 2 seconds. This drains
static electricity from the package and from your body.
without setting down the device. If it is necessary to set down the device, put it
back into its static-protective package. Do not place the device on the server
cover or on a metal surface.
reduces indoor humidity and increases static electricity.
Chapter 2. Installing optional devices
33