Handling Static-Sensitive Devices; Removing The Cover - Lenovo System x3250 M5 Installation And Service Manual

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:
• Limit your movement. Movement can cause static electricity to build up around you.
• The use of a grounding system is recommended. For example, wear an 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.
• Handle the device carefully, holding it by its edges or its frame.
• Do not touch solder joints, pins, or exposed circuitry.
• Do not leave the device where others can handle and damage it.
• While the device is still in its static-protective package, touch it to an unpainted metal surface on the
outside of the server for at least 2 seconds. This drains static electricity from the package and from
your body.
• Remove the device from its package and install it directly into the server 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.
• Take additional care when handling devices during cold weather. Heating reduces indoor humidity
and increases static electricity.

Removing the cover

Use this information to remove the cover.
Read the safety information in "Safety" on page v and "Installation guidelines" on page 31.
If you are replacing a server component or installing an optional device in the server, you need to slide the
server out from the rack enclosure, turn off the server and peripheral devices, and disconnect the power
cords and all external cables.
To remove the server cover, complete the following steps.
Step 1. If the server has been installed in a rack, slide the server out from the rack enclosure. Refer to the
Rack Installation Instructions for more information on installing or removing the server from the rack.
Step 2. Put the server on a working area before you remove any server components or parts from the server.
Step 3. Put your thumbs on the blue tabs (cover-release buttons). Press on the blue tab or button on the left
and slide the cover toward the rear of the server until the cover has disengaged from the chassis.
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Chapter 2 Installing optional devices
33