IBM 7940 User manual

IBM System x3455 Type 7940 and 7941
Problem Determination and Service Guide


IBM System x3455 Type 7940 and 7941
Problem Determination and Service Guide


Note: Before using this information and the product it supports, read the general information in Appendix B, “Notices,” on page 127
and the Warranty and Support Information document on the IBM System x Documentation CD.
Fourth Edition (March 2009)
© Copyright International Business Machines Corporation 2007.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety ............................vii
Guidelines for trained service technicians ...............viii
Inspecting for unsafe conditions .................viii
Guidelines for servicing electrical equipment .............viii
Safety statements ........................x
Chapter 1. Introduction ......................1
Related documentation ......................1
Notices and statements in this document ................2
Features and specifications .....................3
Server controls, LEDs, and connectors ................5
Front view ..........................5
Rear view ..........................6
Internal LEDs, connectors, and jumpers ................7
System-board internal and option connectors .............7
Operator information panel controls and internal connectors ........8
System-board switches and jumpers ................9
System-board external connectors .................11
System-board LEDs ......................12
Chapter 2. Configuration information and instructions .........15
Updating the firmware ......................15
Configuring the server ......................15
Using the Configuration/Setup Utility program ............15
Configuring the Ethernet controller.................16
Updating the BMC firmware ...................16
Updating the UUID .......................17
Updating the DMI/SMBIOS data ..................17
Chapter 3. Parts listing, Type 7940 and 7941 servers..........19
Replaceable server components ..................21
Product recovery CDs ......................23
Power cords ..........................25
Chapter 4. Removing and replacing server components ........29
Installation guidelines ......................29
System reliability guidelines ...................30
Handling static-sensitive devices .................30
Returning a device or component .................30
Removing and replacing Tier 1 CRUs ................31
Removing the cover ......................31
Installing the cover ......................31
Removing an air baffle .....................32
Installing an air baffle .....................33
Removing a riser-card assembly .................33
Installing a riser-card assembly ..................34
Removing an adapter .....................35
Installing an adapter ......................36
Removing the CD or DVD drive..................36
Installing the CD or DVD drive ..................38
Removing a memory module (DIMM)................39
Installing a memory module ...................40
Removing a fan .......................42
© Copyright IBM Corp. 2007 iii

Installing a fan ........................43
Removing the system-board battery ................43
Installing the system-board battery.................44
Removing the power supply ...................46
Installing the power supply ...................48
Removing and replacing Tier 2 CRUs ................49
Removing the operator information panel ..............49
Installing the operator information panel...............50
Removing the CD or DVD backplane................51
Installing the CD or DVD backplane ................52
Removing the front hard disk drive cage assembly...........53
Installing the front hard disk drive cage assembly ...........54
Removing the rear hard disk drive cage assembly ...........55
Installing the rear hard disk drive cage assembly ...........56
Removing the front hard disk drive ................56
Installing the front hard disk drive .................57
Removing the rear hard disk drive .................58
Installing the rear hard disk drive .................59
Removing and replacing FRUs ...................61
Removing a microprocessor ...................61
Installing a microprocessor ...................62
Removing the system board ...................64
Installing the system board ...................65
Chapter 5. Diagnostics .....................67
Diagnostic tools ........................67
POST ............................67
POST beep codes ......................67
Error logs ..........................76
POST error codes .......................77
Checkout procedure .......................83
About the checkout procedure ..................83
Performing the checkout procedure ................84
Troubleshooting tables ......................86
CD or DVD drive problems ...................86
General problems .......................87
Hard disk drive problems ....................88
Intermittent problems......................88
USB keyboard, mouse, or pointing-device problems ..........89
Memory problems .......................90
Microprocessor problems ....................91
Monitor or video problems ....................92
Optional-device problems ....................94
Power problems .......................95
Serial port problems ......................96
ServerGuide problems .....................96
Software problems ......................97
Universal Serial Bus (USB) device problems .............97
System board error LEDs and the light path button ...........98
Light path button .......................99
Power-supply LEDs .......................99
Diagnostic programs, messages, and error codes ...........101
Running the diagnostic programs.................101
Diagnostic text messages ...................102
Viewing the test log......................102
Diagnostic error codes ....................103
iv IBM System x3455 Type 7940 and 7941: Problem Determination and Service Guide

Recovering from a BIOS update failure (Clearing CMOS) .........107
BMC system-event log messages .................109
IPMI BMC system-event log messages ..............110
BIOS-logged BMC system-event log messages ...........115
Resetting passwords ......................117
Solving power problems .....................119
Solving Ethernet controller problems ................119
Video adapter information ....................120
Solving undetermined problems ..................121
Problem determination tips ....................121
Calling IBM for service .....................122
Appendix A. Getting help and technical assistance ..........125
Before you call ........................125
Using the documentation .....................125
Getting help and information from the World Wide Web .........126
Software service and support ...................126
Hardware service and support ...................126
Appendix B. Notices ......................127
Trademarks..........................127
Important notes ........................128
Product recycling and disposal ..................129
Battery return program .....................130
Electronic emission notices ....................131
Federal Communications Commission (FCC) statement ........131
Industry Canada Class A emission compliance statement ........132
Australia and New Zealand Class A statement ............132
United Kingdom telecommunications safety requirement ........132
European Union EMC Directive conformance statement ........132
Taiwanese Class A warning statement ...............133
Chinese Class A warning statement ................133
Japanese Voluntary Control Council for Interference (VCCI) statement 133
Index ............................135
Contents v

vi IBM System x3455 Type 7940 and 7941: Problem Determination and Service Guide

Safety
Before installing this product, read the Safety Information.
Antes de instalar este produto, leia as Informações de Segurança.
Pred instalací tohoto produktu si prectete prírucku bezpecnostních instrukcí.
Læs sikkerhedsforskrifterne, før du installerer dette produkt.
Lees voordat u dit product installeert eerst de veiligheidsvoorschriften.
Ennen kuin asennat tämän tuotteen, lue turvaohjeet kohdasta Safety Information.
Avant d’installer ce produit, lisez les consignes de sécurité.
Vor der Installation dieses Produkts die Sicherheitshinweise lesen.
Prima di installare questo prodotto, leggere le Informazioni sulla Sicurezza.
Les sikkerhetsinformasjonen (Safety Information) før du installerer dette produktet.
Antes de instalar este produto, leia as Informações sobre Segurança.
Antes de instalar este producto, lea la información de seguridad.
Läs säkerhetsinformationen innan du installerar den här produkten.
© Copyright IBM Corp. 2007 vii

Guidelines for trained service technicians
This section contains information for trained service technicians.
Inspecting for unsafe conditions
Use the information in this section to help you identify potential unsafe conditions in
an IBM product that you are working on. Each IBM product, as it was designed and
manufactured, has required safety items to protect users and service technicians
from injury. The information in this section addresses only those items. Use good
judgment to identify potential unsafe conditions that might be caused by non-IBM
alterations or attachment of non-IBM features or optional devices that are not
addressed in this section. If you identify an unsafe condition, you must determine
how serious the hazard is and whether you must correct the problem before you
work on the product.
Consider the following conditions and the safety hazards that they present:
vElectrical hazards, especially primary power. Primary voltage on the frame can
cause serious or fatal electrical shock.
vExplosive hazards, such as a damaged CRT face or a bulging capacitor.
vMechanical hazards, such as loose or missing hardware.
To inspect the product for potential unsafe conditions, complete the following steps:
1. Make sure that the power is off and the power cord is disconnected.
2. Make sure that the exterior cover is not damaged, loose, or broken, and
observe any sharp edges.
3. Check the power cord:
vMake sure that the third-wire ground connector is in good condition. Use a
meter to measure third-wire ground continuity for 0.1 ohm or less between
the external ground pin and the frame ground.
vMake sure that the power cord is the correct type, as specified in “Power
cords” on page 25.
vMake sure that the insulation is not frayed or worn.
4. Remove the cover.
5. Check for any obvious non-IBM alterations. Use good judgment as to the safety
of any non-IBM alterations.
6. Check inside the server for any obvious unsafe conditions, such as metal filings,
contamination, water or other liquid, or signs of fire or smoke damage.
7. Check for worn, frayed, or pinched cables.
8. Make sure that the power-supply cover fasteners (screws or rivets) have not
been removed or tampered with.
Guidelines for servicing electrical equipment
Observe the following guidelines when you service electrical equipment:
vCheck the area for electrical hazards such as moist floors, nongrounded power
extension cords, power surges, and missing safety grounds.
vUse only approved tools and test equipment. Some hand tools have handles that
are covered with a soft material that does not provide insulation from live
electrical currents.
vRegularly inspect and maintain your electrical hand tools for safe operational
condition. Do not use worn or broken tools or testers.
viii IBM System x3455 Type 7940 and 7941: Problem Determination and Service Guide

vDo not touch the reflective surface of a dental mirror to a live electrical circuit.
The surface is conductive and can cause personal injury or equipment damage if
it touches a live electrical circuit.
vSome rubber floor mats contain small conductive fibers to decrease electrostatic
discharge. Do not use this type of mat to protect yourself from electrical shock.
vDo not work alone under hazardous conditions or near equipment that has
hazardous voltages.
vLocate the emergency power-off (EPO) switch, disconnecting switch, or electrical
outlet so that you can turn off the power quickly in the event of an electrical
accident.
vDisconnect all power before you perform a mechanical inspection, work near
power supplies, or remove or install main units.
vBefore you work on the equipment, disconnect the power cord. If you cannot
disconnect the power cord, have the customer power-off the wall box that
supplies power to the equipment and lock the wall box in the off position.
vNever assume that power has been disconnected from a circuit. Check it to
make sure that it has been disconnected.
vIf you have to work on equipment that has exposed electrical circuits, observe
the following precautions:
– Make sure that another person who is familiar with the power-off controls is
near you and is available to turn off the power if necessary.
– When you work with powered-on electrical equipment, use only one hand.
Keep the other hand in your pocket or behind your back to avoid creating a
complete circuit that could cause an electrical shock.
– When you use a tester, set the controls correctly and use the approved probe
leads and accessories for that tester.
– Stand on a suitable rubber mat to insulate you from grounds such as metal
floor strips and equipment frames.
vUse extreme care when you measure high voltages.
vTo ensure proper grounding of components such as power supplies, pumps,
blowers, fans, and motor generators, do not service these components outside of
their normal operating locations.
vIf an electrical accident occurs, use caution, turn off the power, and send another
person to get medical aid.
Safety ix

Safety statements
Important:
Each caution and danger statement in this documentation begins with a number.
This number is used to cross reference an English-language caution or danger
statement with translated versions of the caution or danger statement in the Safety
Information document.
For example, if a caution statement begins with a number 1, translations for that
caution statement appear in the Safety Information document under statement 1.
Be sure to read all caution and danger statements in this documentation before
performing the instructions. Read any additional safety information that comes with
your server or optional device before you install the device.
xIBM System x3455 Type 7940 and 7941: Problem Determination and Service Guide

Statement 1:
DANGER
Electrical current from power, telephone, and communication cables is
hazardous.
To avoid a shock hazard:
vDo not connect or disconnect any cables or perform installation,
maintenance, or reconfiguration of this product during an electrical
storm.
vConnect all power cords to a properly wired and grounded electrical
outlet.
vConnect to properly wired outlets any equipment that will be attached to
this product.
vWhen possible, use one hand only to connect or disconnect signal
cables.
vNever turn on any equipment when there is evidence of fire, water, or
structural damage.
vDisconnect the attached power cords, telecommunications systems,
networks, and modems before you open the device covers, unless
instructed otherwise in the installation and configuration procedures.
vConnect and disconnect cables as described in the following table when
installing, moving, or opening covers on this product or attached
devices.
To Connect: To Disconnect:
1. Turn everything OFF.
2. First, attach all cables to devices.
3. Attach signal cables to connectors.
4. Attach power cords to outlet.
5. Turn device ON.
1. Turn everything OFF.
2. First, remove power cords from outlet.
3. Remove signal cables from connectors.
4. Remove all cables from devices.
Safety xi

Statement 2:
CAUTION:
When replacing the lithium battery, use only IBM Part Number 33F8354 or an
equivalent type battery recommended by the manufacturer. If your system has
a module containing a lithium battery, replace it only with the same module
type made by the same manufacturer. The battery contains lithium and can
explode if not properly used, handled, or disposed of.
Do not:
vThrow or immerse into water
vHeat to more than 100°C (212°F)
vRepair or disassemble
Dispose of the battery as required by local ordinances or regulations.
xii IBM System x3455 Type 7940 and 7941: Problem Determination and Service Guide

Statement 3:
CAUTION:
When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or
transmitters) are installed, note the following:
vDo not remove the covers. Removing the covers of the laser product could
result in exposure to hazardous laser radiation. There are no serviceable
parts inside the device.
vUse of controls or adjustments or performance of procedures other than
those specified herein might result in hazardous radiation exposure.
DANGER
Some laser products contain an embedded Class 3A or Class 3B laser
diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view directly
with optical instruments, and avoid direct exposure to the beam.
Class 1 Laser Product
Laser Klasse 1
Laser Klass 1
Luokan 1 Laserlaite
Appareil A Laser de Classe 1
`
Safety xiii

Statement 4:
≥18 kg (39.7 lb) ≥32 kg (70.5 lb) ≥55 kg (121.2 lb)
CAUTION:
Use safe practices when lifting.
Statement 5:
CAUTION:
The power control button on the device and the power switch on the power
supply do not turn off the electrical current supplied to the device. The device
also might have more than one power cord. To remove all electrical current
from the device, ensure that all power cords are disconnected from the power
source.
1
2
xiv IBM System x3455 Type 7940 and 7941: Problem Determination and Service Guide

Statement 8:
CAUTION:
Never remove the cover on a power supply or any part that has the following
label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts inside
these components. If you suspect a problem with one of these parts, contact
a service technician.
Statement 26:
CAUTION:
Do not place any object on top of rack-mounted devices.
Attention: This server is suitable for use on an IT power distribution system,
whose maximum phase to phase voltage is 240 V under any distribution fault
condition.
Safety xv

xvi IBM System x3455 Type 7940 and 7941: Problem Determination and Service Guide

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:
vTier 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.
vTier 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.
vField 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:
vInstallation Guide
This printed document contains instructions for setting up the server and basic
instructions for installing some optional devices.
vUser’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.
vRack Installation Instructions
This printed document contains instructions for installing the server in a rack.
vSafety 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.
vWarranty 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 1

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 x3455 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:
vNote: These notices provide important tips, guidance, or advice.
vImportant: These notices provide information or advice that might help you avoid
inconvenient or problem situations.
vAttention: 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.
vCaution: 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.
vDanger: 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.
2IBM System x3455 Type 7940 and 7941: Problem Determination and Service Guide