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
watches.
v
Remove items from your shirt pocket, such as pens and pencils, that could fall
into the server as you lean over it.
v
Avoid dropping any metallic objects, such as paper clips, hairpins, and screws,
into the server.
Handling 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
you.
v
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.
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 surface on the outside of the server 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 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.
v
Take additional care when handling devices during cold weather. Heating reduces
indoor humidity and increases static electricity.
Removing the cover
Important:
Before you install optional hardware, make sure that the server is
working correctly. Start the server, and make sure that the operating system starts,
if an operating system is installed, or that a 19990305 error code is displayed,
indicating that an operating system was not found but the server is otherwise
working correctly. If the server is not working correctly, see the
Problem
Determination and Service Guide
for diagnostic information.
To remove the server cover, complete the following steps:
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 27.
2. Turn off the server and peripheral devices and disconnect the power cords and
all external cables, if necessary.
Note:
When you disconnect the power source from the server, you lose the
ability to view the LEDs because the LEDs are not lit when the power
source is removed. Before you disconnect the power source, make a
Chapter 2. Installing optional devices
29
Summary of Contents for 4251
Page 1: ...IBM System x3250 M3 Types 4251 4252 and 4261 Installation and User s Guide ...
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Page 3: ...IBM System x3250 M3 Types 4251 4252 and 4261 Installation and User s Guide ...
Page 7: ...Index 85 Contents v ...
Page 8: ...vi IBM System x3250 M3 Types 4251 4252 and 4261 Installation and User s Guide ...
Page 34: ...18 IBM System x3250 M3 Types 4251 4252 and 4261 Installation and User s Guide ...
Page 100: ...84 IBM System x3250 M3 Types 4251 4252 and 4261 Installation and User s Guide ...
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Page 106: ... Part Number 81Y6118 Printed in USA 1P P N 81Y6118 ...
