Lenovo BladeCenter HX5 1909, Problem Determination And Service Manual, Page: 82 / 313

• The blade server battery must be operational. If the battery becomes defective, replace it immediately.
Handling static-sensitive devices
To reduce the possibility of damage from electrostatic discharge, observe these precautions.
Attention: Static electricity can damage the blade server and other electronic devices. To avoid damage,
keep static-sensitive devices in their static-protective packages until you are ready to install them.
• When you work on a BladeCenter chassis that has an electrostatic discharge (ESD) connector, use a wrist
strap, especially when you handle modules, optional devices, or blade servers. To work correctly, the
wrist strap must have a good contact at both ends (touching your skin at one end and firmly connected to
the ESD connector on the front or back of the BladeCenter chassis).
• Limit your movement. Movement can cause static electricity to build up around you.
• 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 part of the
BladeCenter chassis or any unpainted metal surface on any other grounded rack component in the rack in
which you are installing the device 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 blade 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 blade server cover or on a metal surface.
• Take additional care when you handle devices during cold weather. Heating reduces indoor humidity and
increases static electricity.
Returning a device or component
If you are instructed to return a device or component, follow all packaging instructions, and use any
packaging materials for shipping that are supplied to you.
Removing the blade server from the BladeCenter chassis
Use these instructions to remove a BladeCenter HX5 blade server or a scalable blade complex from a
BladeCenter chassis.
The following illustration shows how to remove a BladeCenter HX5 blade server from a chassis.
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BladeCenter HX5 Blade ServerProblem Determination and Service Guide