IBM x3550 Installation Guide - Page 67

Solving, problems

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Chapter 5. Solving problems This chapter provides basic troubleshooting information to help you solve some common problems that might occur while you are setting up the server. If you cannot locate and correct the problem using the information in this chapter, see Appendix A, "Getting help and technical assistance," on page 73, the IBM Problem Determination and Service Guide on the IBM System x Documentation CD, and the "Server Support" flowchart in the front of this document. Diagnostic tools overview The following tools are available to help you diagnose and solve hardware-related problems: v POST beep codes The power-on self-test (POST) beep codes indicate the detection of a problem. See "POST beep codes" and the IBM Problem Determination and Service Guide on the IBM System x Documentation CD for more information. v Troubleshooting tables These tables list problem symptoms and steps to correct the problems. See "Troubleshooting tables" on page 56 for more information. v Light path diagnostics Use light path diagnostics to diagnose system errors quickly. See "Light path diagnostics" on page 68 for more information. v Diagnostic programs and error messages The diagnostic programs, which are stored in upgradable read-only memory (ROM) on the system board, are the primary method of testing the major components of the server. See the IBM Problem Determination and Service Guide on the IBM System x Documentation CD for more information. POST beep codes POST emits one beep to signal successful completion. If POST detects a problem during startup, other beep codes might occur. Use the following beep code descriptions to help diagnose and solve problems that are detected during startup. Note: See the Problem Determination and Service Guide on the IBM System x Documentation CD for more information about the POST beep codes. A single problem might cause more than one error message. When this occurs, correct the cause of the first error message. The other error messages usually will not occur the next time POST runs. One beep POST was completed successfully without finding any errors. One long beep and two short beeps A video error has occurred, and the BIOS cannot initialize the monitor screen to display additional information. Other beep codes See the Problem Determination and Service Guide on the IBM System x Documentation CD for information about other beep codes. © Copyright IBM Corp. 2006, 2008 53

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Chapter
5.
Solving
problems
This
chapter
provides
basic
troubleshooting
information
to
help
you
solve
some
common
problems
that
might
occur
while
you
are
setting
up
the
server.
If
you
cannot
locate
and
correct
the
problem
using
the
information
in
this
chapter,
see
Appendix
A,
“Getting
help
and
technical
assistance,”
on
page
73,
the
IBM
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD,
and
the
“Server
Support”
flowchart
in
the
front
of
this
document.
Diagnostic
tools
overview
The
following
tools
are
available
to
help
you
diagnose
and
solve
hardware-related
problems:
v
POST
beep
codes
The
power-on
self-test
(POST)
beep
codes
indicate
the
detection
of
a
problem.
See
“POST
beep
codes”
and
the
IBM
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD
for
more
information.
v
Troubleshooting
tables
These
tables
list
problem
symptoms
and
steps
to
correct
the
problems.
See
“Troubleshooting
tables”
on
page
56
for
more
information.
v
Light
path
diagnostics
Use
light
path
diagnostics
to
diagnose
system
errors
quickly.
See
“Light
path
diagnostics”
on
page
68
for
more
information.
v
Diagnostic
programs
and
error
messages
The
diagnostic
programs,
which
are
stored
in
upgradable
read-only
memory
(ROM)
on
the
system
board,
are
the
primary
method
of
testing
the
major
components
of
the
server.
See
the
IBM
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD
for
more
information.
POST
beep
codes
POST
emits
one
beep
to
signal
successful
completion.
If
POST
detects
a
problem
during
startup,
other
beep
codes
might
occur.
Use
the
following
beep
code
descriptions
to
help
diagnose
and
solve
problems
that
are
detected
during
startup.
Note:
See
the
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD
for
more
information
about
the
POST
beep
codes.
A
single
problem
might
cause
more
than
one
error
message.
When
this
occurs,
correct
the
cause
of
the
first
error
message.
The
other
error
messages
usually
will
not
occur
the
next
time
POST
runs.
One
beep
POST
was
completed
successfully
without
finding
any
errors.
One
long
beep
and
two
short
beeps
A
video
error
has
occurred,
and
the
BIOS
cannot
initialize
the
monitor
screen
to
display
additional
information.
Other
beep
codes
See
the
Problem
Determination
and
Service
Guide
on
the
IBM
System
x
Documentation
CD
for
information
about
other
beep
codes.
©
Copyright
IBM
Corp.
2006,
2008
53