v Problem Determination and Service Guide

This document is in PDF on the IBM System x Documentation CD. It contains
information to help you solve problems yourself, and it contains information for

service technicians.

Depending on the server model, additional documentation might be included on the

IBM System x Documentation CD.
The System x and xSeries® Tools Center is an online information center that
contains information about tools for updating, managing, and deploying firmware,
device drivers, and operating systems. The System x and xSeries Tools Center is at
http://publib.boulder.ibm.com/infocenter/toolsctr/v1r0/index.jsp.
The server might have features that are not described in the documentation that
comes with the server. The documentation might be updated occasionally to include
information about those features, or technical updates might be available to provide
additional information that is not included in the server documentation. These
updates are available from the IBM Web site. To check for updated documentation
and technical updates, complete the following steps.

Note: Changes are made periodically to the IBM Web site. The actual procedure

might vary slightly from what is described in this document.
1. Go to http://www.ibm.com/servers/eserver/support/xseries/index.html.
2. From the Hardware list, select System x3950 or System x3950 E and click

Go.

3. Click the Install and use tab.

4. Click Product documentation.

Notices and statements in this document
The caution and danger statements that appear in this document are also in the
multilingual Safety Information document, which is on the IBM System x

Documentation CD. Each statement is numbered for reference to the corresponding

statement in the Safety Information document.
The following notices and statements are used in this document:

v Note: These notices provide important tips, guidance, or advice.

v Important: These notices provide information or advice that might help you avoid

inconvenient or problem situations.

v Attention: These notices indicate potential damage to programs, devices, or

data. An attention notice is placed just before the instruction or situation in which
damage could occur.

v Caution: These statements indicate situations that can be potentially hazardous

to you. A caution statement is placed just before the description of a potentially
hazardous procedure step or situation.

v Danger: These statements indicate situations that can be potentially lethal or

extremely hazardous to you. A danger statement is placed just before the
description of a potentially lethal or extremely hazardous procedure step or

situation.

2 IBM System x3950 Type 8878 and System x3950 E Type 8879: User’s Guide