IBM 7940, Problem Determination And Service Manual

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Chapter 1. Introduction
This Problem Determination and Service Guide contains information to help you
solve problems that might occur in your IBM
®
System x3455 Type 7940 or 7941
server. It describes the diagnostic tools that come with the server, error codes and
suggested actions, and instructions for replacing failing components.
Technical updates might be available to provide additional information that is not
included in the server documentation. To check for updates, go to
http://www.ibm.com/servers/eserver/support/xseries/index.html, select
System
x3455 from the Hardware list, and click Go . For firmware updates, click the
Download tab. For documentation updates, click the Install and use tab, and click
Product documentation .
Replaceable components are of three types:
v
Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your
responsibility. If IBM installs a Tier 1 CRU at your request, you will be charged for
the installation.
v Tier 2 customer replaceable unit: You may install a Tier 2 CRU yourself or
request IBM to install it, at no additional charge, under the type of warranty
service that is designated for your server.
v
Field replaceable unit (FRU): FRUs must be installed only by trained service
technicians.
For information about the terms of the warranty and getting service and assistance,
see the
Warranty and Support Information document.
Related documentation
In addition to this document, the following documentation also comes with the
server:
v Installation Guide
This printed document contains instructions for setting up the server and basic
instructions for installing some optional devices.
v User’s Guide
This document is in Portable Document Format (PDF) on the IBM System x
Documentation CD. It provides general information about the server, including
information about features, and how to configure the server. It also contains
detailed instructions for installing, removing, and connecting optional devices that
the server supports.
v
Rack Installation Instructions
This printed document contains instructions for installing the server in a rack.
v
Safety Information
This document is in PDF on the IBM System x Documentation CD. It contains
translated caution and danger statements. Each caution and danger statement
that appears in the documentation has a number that you can use to locate the
corresponding statement in your language in the
Safety Information document.
v
Warranty and Support Information
This document is in PDF on the IBM System x Documentation CD. It contains
information about the terms of the warranty and getting service and assistance.
© Copyright IBM Corp. 2007
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