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System reliability guidelines
Follow these guidelines to help ensure proper cooling and system reliability.
v Verify that the ventilation holes on the blade server are not blocked.
v Verify that you are maintaining proper system cooling in the unit.
Do not operate the BladeCenter unit without a blade server, expansion unit, or filler blade installed in
each blade bay. See the documentation for your BladeCenter unit for additional information.
v Verify that you have followed the reliability guidelines for the BladeCenter unit.
v Verify that the blade server battery is operational. If the battery becomes defective, replace it
immediately, as described in "Removing the battery" on page 258 and "Installing the battery" on page
258.
Handling static-sensitive devices
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.
Attention:
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 you.
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 metal part of the
BladeCenter unit or any unpainted metal surface on any other grounded rack component in the rack
you are installing the device in for at least 2 seconds. This drains static electricity from the package and
from your body.
v 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.
v Take additional care when handling devices during cold weather. Heating dry winter air further
reduces its 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.
230
Power Systems: Problem Determination and Service Guide for the IBM PS703 (7891-73X) and PS704 (7891-74X)
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