IBM i 830 Operating instructions

iSeries
iSeries Model 830, 840, SB2, and SB3
Problem Analysis, Repair and Parts
Version 5
SY44-5969-01


iSeries
iSeries Model 830, 840, SB2, and SB3
Problem Analysis, Repair and Parts
Version 5
SY44-5969-01


Note
Before using this information and the product it supports, be sure to read the information in
“Safety and Environmental Notices” on page ix and “Notices” on page 983.
Second Edition (May 2001)
This edition applies to version 5, release 1, modification 0 of OS/400 Operating System and to all subsequent
releases and modifications until otherwise indicated in new editions. This edition applies only to reduced
instruction set computer (RISC) systems.
© Copyright International Business Machines Corporation 2000, 2001. All rights reserved.
US Government Users Restricted Rights – Use, duplication or disclosure restricted by GSA ADP Schedule Contract
with IBM Corp.

Contents
Safety and Environmental Notices . . . ix
Danger Notices .............ix
Caution Notices .............x
Attention Notices ............xi
Laser Safety Information ..........xi
Product Recycling and Disposal........xi
Battery Return Program ..........xi
Environmental Design ...........xi
Part 1. Problem Analysis ......1
Chapter 1. Starting Problem Analysis . . 3
Starting Problem Analysis ..........3
System Service Library Structure.......3
Starting Point for All Problems .......4
Using the Service Action Log .........9
Using the Product Activity Log ........11
UsingtheProblemLog..........12
Handling Problems for Non-critical Resources . . . 13
Analyzing Intermittent Problems .......14
Safety ...............14
Special Tools and Equipment .......14
How to Use This Intermittent Problem Section . 15
Correcting Intermittent Problems ......15
General Intermittent Problem Checklist ....16
How to Analyze the Intermittent Problem . . . 20
Intermittent Symptom Table ........20
Failing Area INT-PIP Table ........21
Analyzing IPL Problems ..........22
Start Analyzing IPL Problems Here .....22
Cannot Perform IPL from the Control Panel (No
SRC)................22
Cannot Perform IPL at a Specified Time (No
SRC)................23
Cannot Perform IPL from a Remote Location (No
SRC)................27
Cannot Automatically Perform an IPL after a
PowerFailure ............36
Analyzing Power Problems .........37
Start Analyzing Power Problems Here ....37
Cannot Power On System Unit (No SRC) . . . 38
Cannot Power On Secondary Frame or Unit (No
SRC)................42
System or Expansion Unit Cannot Become
PoweredOff.............56
Chapter 2. Unit Reference Codes . . . 59
How to Use This Section ..........59
SRCExceptionTable...........61
(0000) Control Panel Reference Codes......62
Control Panel Failing Items ........64
(1xxx) System Power Control Network (SPCN)
Reference Codes .............64
System Power Control Network Failing Items 116
(2105) Disk Unit Reference Codes.......117
Disk Unit Failing Items .........118
(2746) Twinaxial –Workstation Adapter Reference
Codes ................118
Workstation Adapter Failing Items .....119
(2748, 2763, 2778) Reference Codes ......119
Failing Items ............123
(2749, 2767, 2768, 2842, 2843, 284B) Reference
Codes ................124
Failing Items ............130
(2765, 2766) Reference Codes ........131
Failing Items ............133
(283C, 283D, 283F) Device Backplane Reference
Codes ................133
Failing Items ............134
(3490) Tape Unit Reference Codes ......134
Tape Unit Failing Items .........140
(3494) Tape Library Reference Codes .....140
Tape Library Failing Items ........142
(3570) Tape Unit Reference Codes ......142
Tape Unit Failing Items .........146
(3590) Tape Unit Reference Codes ......146
Tape Unit Failing Items .........150
(432x, 660x, 671x, 673x) Disk Unit Reference Codes 151
Disk Unit Failing Items .........153
(632x, 6330) Optical Storage Unit Reference Codes 154
Optical Storage Unit Failing Items .....156
(63A0) Tape Unit Reference Codes ......156
Tape Unit Failing Items .........160
(6A59) Workstation Adapter Console Reference
Codes ................160
Workstation Adapter Console Failing Items . . 161
(7208) Tape Drive Reference Codes ......162
(7208) Model 002 Tape Drive Reference Codes . . 162
Model 002 Tape Drive Failing Items ......166
(7208) Model 012 Tape Drive Reference Codes . . 166
Model 012 Tape Drive Failing Items .....172
(9348) Tape Unit Reference Codes ......172
(9427) Tape Unit Reference Codes ......173
Tape Unit Failing Items .........178
(A1xx, B1xx) Service Processor Reference Codes 179
Service Processor Failing Items ......182
(A6xx) LIC Reference Codes ........183
(A9xx, B9xx) Reference Codes ........183
(B003) Asynchronous Communications Reference
Codes ................183
Asynchronous Communications Failing Items 189
(B006) Common Licensed Internal Code Reference
Codes ................190
Common Licensed Internal Code Failing Items 194
(B070) Reference Codes ..........194
Failing Items ............202
(B075) Workstation Adapter Console Reference
Codes ................202
Workstation Adapter Console Failing Items . . 206
(B2xx) Logical Partition Reference Codes ....207
© Copyright IBM Corp. 2000, 2001 iii

(B2xx) Logical Partition Failing Items ....215
(B437) System Processor Reference Codes ....215
Model 830 and SB2 System Processor Failing
Items ...............229
(B467) System Processor Reference Codes ....229
Model 840 and SB3 System Processor Failing
Items ...............238
(B4FF) System Processor Reference Codes ....238
(B6xx) LIC Reference Codes ........239
Licensed Internal Code (LIC) Failing Items . . 274
Chapter 3. Problem Isolation
Procedures (PIPs), Failing Items, and
Symbolic FRU Isolation .......277
ProblemIsolationProcedures........279
Bus, High-Speed Link (HSL) Problem Isolation
Procedures.............279
CommunicationsPIPs.........325
Disk Unit Problem Isolation Procedures . . . 328
Intermittent Problem Isolation Procedures . . . 332
Licensed Internal Code (LIC) Problem Isolation
Procedures.............341
Logical Partition (LPAR) Problem Isolation
Procedures.............376
Operations Console Problem Isolation
Procedures.............380
PowerPIPs.............387
Storage Device I/O Processor (SDIOP) Problem
IsolationProcedures..........400
Service Processor Problem Isolation Procedures 437
SPCN PIPs .............443
Tape Unit Problem Isolation Procedures . . . 445
Twinaxial Workstation I/O Processor Problem
IsolationProcedures..........464
Workstation Adapter PIPs ........472
Workstation Adapter Console Problem Isolation
Procedures.............476
Failing Items .............479
Symbolic FRUs .............495
ACMODUL .............495
AIRMOVR.............497
ALTINTF..............499
ALTMANL.............501
ANYBUS ..............502
ANYFC..............502
ANYMEM.............502
ANYMEMX.............503
ANYPROC .............503
AS4NTDD .............504
BACKPLN .............504
BATCHGR.............505
BATRY..............505
BKSPCN ..............506
BSTWRPL .............506
BUS1 ...............507
BUSPWR ..............509
CACHBAT .............511
CACHE ..............511
CBLALL ..............512
CCIN...............515
CDAWKLD.............521
CDTRAY ..............521
CECPWR..............521
CHECK..............522
CLKCARD .............522
CLCKCRD .............522
CMPRES1 .............523
CRYPBAT .............523
CTLPNCD .............523
CTLPNL ..............524
CVTCARD .............524
DEVBPLN .............525
DEVICE ..............525
DEVTERM .............525
DIMM0..............526
DIMM1..............527
DIMM2..............528
DIMM3..............529
DISKDRV .............529
DISKIMG..............530
DISKTRY ..............530
DMREG..............530
DPAC...............534
DRVSWCH.............535
DSKDRV ..............535
DSKTRY ..............535
DSKUNIT .............535
EACODE ..............535
EXTREMD .............535
EXTSCSI ..............535
FCCABLE .............537
FCCODE ..............537
FCDEV ..............537
FCGATE ..............537
FCINTF..............537
FCIOA ..............537
FCPORT ..............538
HSLCTLR .............539
IDPART..............539
INTRLCK .............544
IOACNFG .............544
IOP................544
IOPWR..............544
IPLINTF..............544
I2CBUS ..............546
LBSADP1..............550
LBSADP2..............550
LBSADP3..............550
LBSADP4..............550
LBSADP5..............550
LBUSADP .............551
LOC_SYS..............551
LPARCFG .............551
LPARSUP .............551
LSMEDIA.............552
MABRCFG .............552
MA_BRDG .............554
MASBUS ..............556
MEDIA..............557
MEMORY.............558
MSTORE..............558
iv iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1

MUMIOCD.............559
NETSERV .............560
NEXTLVL .............560
NOFRUS ..............560
NOMSUSE .............560
NSCABLE .............560
NTDEVDR .............560
NTLANDD .............560
NTOPSYS .............560
NTUSER ..............561
NTVSCSI ..............561
OPT_CLN .............561
OPTLCBL .............561
OPTLDRV .............561
OPUSER ..............561
PCIBUS..............562
PGDPART .............562
PIOCARD .............564
PLUS ...............566
PPCIMIN..............566
PPCITWR .............567
PRI_PCI ..............567
PROC ...............568
PROC0 ..............569
PROC1 ..............569
PROC2 ..............570
PROC3 ..............570
PWROC..............571
PWRREG..............573
PWRSPLY .............576
QSYSOPR .............581
REFER ..............581
REM_SYS .............582
RIOPORT .............582
RMDEV..............582
SIADPCD .............582
SI_CARD ..............583
SICNTRL..............584
SIIOADP ..............585
SI_PHB..............587
SIRGCBL ..............588
SIRGCFG..............590
SIRSTAT..............591
SLOTERR .............595
SNSDATA.............597
SPCNCRD .............597
SPNLCRD .............597
STORIOA .............598
SVCDOCS .............598
SVCPROC .............598
SYSBKPL ..............598
SYSUNIT ..............599
TAPCLN ..............600
TAPCNFG .............600
TOD...............600
TWRBKPL .............601
TWRCARD .............601
TWRPLNR .............602
UC235...............603
UC236...............603
UG3AS ..............604
UJ0E7...............604
UJ6P3...............604
UJA34...............604
UJE34...............605
UJE35...............605
UJE40...............605
ULNZ3..............605
ULNZ4..............606
UNP20..............606
UPLF1...............606
UPSUNIT .............606
USER ...............607
UX201 ...............607
UX202 ...............607
UY1Z1 ..............607
UY1Z2 ..............608
UY1Z3 ..............608
UY1Z4 ..............608
UY1Z5 ..............608
VPDCONC .............609
VPDPART .............609
Part 2. FRU Replacement .....615
Chapter 4. Removal and Installation
Procedures ............617
FC 5074, FC 5079, FC 9079 (With Single Line Cord)
–AC Charger –A01...........618
FC 5074, FC 5079, FC 9079 (With Dual Line Cord) –
AC Charger –A01............618
FC 5074/5079, FC 9074, FC 9079 –AMD –B01 and
B02.................619
FC 5074, FC 5079, FC 9079 –Batteries –T01, T02,
T03, and T04 .............619
FC 5074, FC 5079 –Cards –Concurrent ....620
FC 5074, FC 5079 –Cards –Dedicated.....622
FC 5074, FC 5079, FC 9079 –Covers ......623
FC 5074, FC 5079, FC 9079 –Device Board –DB1
andDB2...............625
FC 5074, FC 5079, FC 9079 –Device Board –DB3 626
FC 5074, FC 5079 –Disk Unit –Concurrent . . . 627
FC 5074, FC 5079 –Disk Unit –Dedicated....629
FC 5074, FC 5079 –Control Panel –NB1....630
FC 5074, FC 5079, FC 9079 –Power Distribution
Board –PB1..............631
FC 9074, FC 9079, FC 5074/5079 –Power Supply –
P01, P02, and P03 ............632
FC 5074, FC 5079, FC 9079 –Removable Media –
D41andD42.............633
Laser Safety Information ........633
FC 5074/5079, FC 9079 –Tower Card –CB1 . . . 635
FC 5075 –AMD –B01, B02 .........638
FC 5075 –Cards –Concurrent ........638
FC 5075 –Cards –Dedicated........640
FC 5075 –Covers............641
FC 5075 –Device Board –DB1 .......641
FC 5075 –SPCN Card –SB1........642
FC 5075 –Disk Unit –Concurrent ......642
FC 5075 –Disk Unit –Dedicated.......644
FC 5075 –Control Panel –NB1.......645
Contents v

FC 5075 –Power Distribution Board –PB1 . . . 646
FC 5075 –Power Supply –P01andP02 ....646
FC 5075 –Tower Card –CB1........647
FC 5078/0578 –AMDs –B01andB02.....647
FC 5078/0578 –AMD Controller Card –BB1 . . . 647
FC 5078/0578 –Cards –Concurrent ......648
FC 5078/0578 –Cards –Dedicated......649
FC 5078/0578 –Covers..........650
FC 5078/0578 –Expansion Unit Control Panel –
NB1................651
FC 5078/0578 –Power Distribution Backplane –
PB1.................651
FC 5078/0578 –Power Supplies –P01 and P02 . . 652
FC 5078/0578 –Tower Card –CB1......652
HSL Cables –Concurrent .........653
Models 830/SB2 with FC 9074 (With Single Line
Cord) –AC Input/Charger (A01) .......653
Model 830 FC 9074, Model 840 FC 9079/8079 (With
Dual Line Cords) –AC Module (A01, A02) . . . 654
Models 830/SB2 with FC 9074 –AMD (BP1 and
BP2) ................654
Models 830/SB2 with FC 9074 –Battery (T01
through T04) .............655
Models 830/SB2 with FC 9074 –Cards –
Concurrent ..............655
Models 830/SB2 with FC 9074 –Cards –Dedicated 658
Models 830/SB2 with FC 9074 –Covers....663
Models 830/SB2 –Device Boards (DB1 and DB2) 664
Models 830/SB2 –Device Board (DB3) .....665
Models 830/SB2 with FC 9074 –System Unit
Control Panel (NB1) ...........667
Models 830/SB2 with FC 9074 –Power
Distribution Backplane (PB1) ........669
Models 830/SB2 with FC 9074 –Power Supply
(PP1 and PP2) .............670
Models 830/SB2 with FC 9074 –Removable Media
(D41 & D42)..............671
Laser Safety Information ........671
Models 830/SB2 with FC 9074 –System Unit
Backplane(MB1)............673
Models 830/SB2 with FC 9074 –Time of Day
(TOD) Battery .............674
Models 830/SB2 with FC 9074 –Tower Card (CB1) 675
Models 840/SB3 Processor Tower (with Non-Dual
Line Cords) –AC Box (A01) ........676
Models 840/SB3 Processor Tower (With Dual Line
Cords) –AC Box Concurrent Maintenance
Procedure (A01, A03) ...........676
Models 840/SB3 Processor Tower (With Dual Line
Cords) –Concurrent Maintenance Adapter Card
(A02) ................677
Models 840/SB3 Processor Tower –AMD (B01,
B02, B03, and B04)............677
Models 840/SB3 System Unit –Battery Pack (T01) 678
Models 840/SB3, FC 8079 (lower half), FC 9079
Cards —Concurrent ...........678
Models 840/SB3, FC 8079 (lower half), FC 9079
Cards —Dedicated...........681
Cards –Special Procedures for FC 2689, 2748, 2763,
2778, 2890, and 4758 ...........683
Type 2689 –Integrated xSeries Adapter (IXA) 683
Type 2748, 2763, 2778 –Cache Battery Pack . . 684
Type 2748, 2763, 2778 –Cache Directory Card 686
Type 2890 –Integrated xSeries Server (IXS) . . 686
Type 4758 –Battery Replacement Procedure . . 687
Type 4758 –Disablement Procedure .....689
Models 840/SB3 System Unit –Charger (G01) . . 690
Models 840/SB3 –Covers.........690
Model 840/SB3 Processor Tower, FC 8079 (lower
half), and FC 9079 –Control Panels (NB1) ....690
Models 840/SB3 System Unit –Power Subframe
Assembly (PB1) ............693
Models 840/SB3 Processor Tower –Power Supply
(PS) (P01 Through P06) ..........694
Models 840/SB3 System Unit –SPCN Card (R21) 695
Models 840/SB3 –System Unit Backplane (MB1)
and Regulator Board (RB1) .........695
Models 840/SB3 –Time of Day (TOD) Battery . . 697
Disk Unit –Dedicated and Concurrent .....698
Disk Unit, Models 830/SB2 and 840/SB3 –
Dedicated and Concurrent ........698
Tape Cartridge –Manual Removal ......701
6383, 6385, 6386, 6387 Tape Cartridge ....701
1/4 inch Tape Cartridge (Type 6335).....702
Optical Media –Manual Removal ......704
CD-ROMandDVD..........704
Chapter 5. Locations, Addresses, and
Part Listings............705
Locations and Addresses .........705
StartHereforLocationsInformation ....705
Locations —Models 830, SB2 System Unit with
FC 9074 Base I/O Tower ........709
Locations —Models 840, SB3 System Unit with
Processor Tower and FC 9079 Base I/O Tower . 719
Locations —FC 8079 I/O Tower ......735
Locations —FC 5074 I/O Tower ......736
Locations —FC 5075 I/O Tower ......740
Locations —FC 5078, 0578 PCI Expansion Unit 743
Locations —FC 5079 I/O Tower ......747
Locations —Integrated xSeries Adapter Card
(IXA), Formerly the Adapter for Netfinity Server 748
Locations —Power Distribution Unit (PDU) . . 750
Addresses —Models 830, SB2 System Unit with
FC 9074 Base I/O Tower ........750
Addresses —Models 840, SB3 Processor Tower
and FC 9079 Base I/O Tower .......758
Addresses —FC 5074 I/O Tower......766
Addresses —FC 5075 I/O Tower......775
Addresses —FC 5078/0578 PCI Expansion Unit 776
Addresses —FC 5079 I/O Tower......778
Addresses —for External xSeries Server, iSeries
Adapter —Machine Type 1519 ......778
I/O Adapters ............779
Power and Signal Cables ........779
Part Assemblies ............802
Assembly 1: Models 830 and SB2 with FC 9074 –
Cover Assembly ............804
Assembly 2: Models 830 and SB2 with FC 9074 –
Final Assembly, Front ..........806
Assembly 3: Models 830 and SB2 with FC 9074 –
Final Assembly, Rear ...........814
vi iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1

Assembly 4: Models 830 and SB2 with FC 9074 –
Control Panel Assembly ..........824
Assembly 5: Models 840 and SB3 Processor Tower
–Cover Assembly ............826
Assembly 6: Models 840 and SB3 Processor Tower–
Final Assembly, Front ..........828
Assembly 7: Models 840 and SB3 Processor Tower
–Final Assembly, Rear ..........832
Assembly 8: Models 840 and SB3 –Control Panel,
Processor Tower ............838
Assembly 9: FC 9079 Tower (Models 840 and SB3)
–Cover Assembly ............840
Assembly 10: FC 9079 Tower (Models 840 and SB3)
–Final Assembly ............842
Assembly 11: Cover Assembly —FC 5074 ....852
Assembly 12: Final Assembly —FC 5074 ....854
Assembly 13: Cover Assembly –FC 5075 ....864
Assembly 14: Final Assembly –FC 5075 ....866
Assembly 15: Cover Assembly —FC 5078 ....870
Assembly 16: Final Assembly –FC 5078/0578 . . 872
Assembly 17: Cover and Hardware Assembly For
—FC 5079, FC 8079, FC 0550, FC 0551, 0578 . . . 876
Assembly 18: Power Distribution Unit (PDU)
Assembly For —FC 5079, FC 8079, FC 0550, FC
0551, 0578 ..............878
Cables and Miscellaneous .........879
ExternalCables............879
Assembly 19: External Cables ........880
InternalCables............882
Miscellaneous ............882
Assembly 20: Miscellaneous ........884
Type, Model, and Part Number list ......885
Model 830/SB2 –Processor Feature Codes and
CCINs...............890
Power Cord Part Numbers and Receptacle
Descriptions ..............891
Chapter 6. Data Recovery Procedures
and General System Information . . . 893
RecoveryProcedures...........893
Disk Service Support ..........893
StartDiskServiceHere.........894
Exchanging a Disk Unit with Device Parity
Protection .............896
Exchanging a Disk Unit with Mirrored
Protection .............897
Resuming Mirrored Protection.......902
Disk Unit Data Save and Initialize .....903
Disk Unit Initialize and Disk to Disk Copy . . 912
DSTProcedures ...........917
Verifying the Repair ...........920
Verify Dedicated Repair. .........920
Verify Concurrent Repair ........921
Powering On and Powering Off the System and
Logical Partitions ............922
Powering On the System ........922
Powering Off the System ........923
Expansion Tower and SPCN Controlled Expansion
UnitPowerProcedure..........926
StorageI/Ocardmodesandjumpers.....934
Setting or changing the mode of an I/O card 934
Mode jumper has been overridden .....935
Mode jumper is missing .........936
SRC Address Formats ..........936
HardwareSRCFormats.........940
Important Cryptographic I/O Processor
Information..............942
Determining if the System Has Logical Partitions 943
Determining if the System Has Guest Partitions 943
Determining the Release Level of a Guest Partition 943
Determining the Hosting Partition of a Guest
Partition ...............944
Determining the Load Source Disk and Alternate
IPLDevice..............944
Introduction .............944
Finding the Load-Source Disk on Systems
without Mirrored Protection .......944
What You Should Know about Load Source
Disks on Systems with Mirrored Protection . . 944
Finding the Load Source Disks on Systems with
Mirrored Protection ..........945
Alternate IPL Device ..........945
Reclaim IOP Cache Storage.........947
Part 3. Appendixes ........949
Appendix A. Problem Summary Form 951
Appendix B. Preventive Maintenance
(PM)...............953
Appendix C. Working with
Electrostatic Discharge-Sensitive
Parts ...............955
Appendix D. System Safety Inspection 957
Introduction ..............957
Covers –AllModels...........957
AC Power Cord(s) –AllModels.......957
AC Safety Grounds ...........958
Safety Labels .............958
Power Off and On (System Unit) –All Models . . 958
Internal Mechanical Inspection .......958
Appendix E. Service Log ......961
Appendix F. HSL Loop Configuration
and Status Form ..........963
Appendix G. HSL Link Status
Diagnosis Form ..........967
Appendix H. Installed Features in a
PCI Bridge Set Form ........969
Appendix I. HSL Cable Location Form 971
Part Number Index .........973
Contents vii

Glossary .............979 Notices ..............983
Trademarks..............984
viii iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1

Safety and Environmental Notices
Danger Notices
A danger notice calls attention to a situation that is potentially lethal or extremely
hazardous to people.
Use the following danger notices throughout this book:
DANGER
To prevent a possible electrical shock during an electrical storm, do not
connect or disconnect cables or station protectors for communications lines,
display stations, printers, or telephones. (RSFTD003)
DANGER
To prevent a possible electrical shock from touching two surfaces with
different electrical grounds, use one hand, when possible, to connect or
disconnect signal cables. (RSFTD004)
DANGER
To prevent a possible electrical shock, do not use the port tester during
electrical storms. (RSFTD006)
DANGER
An electrical outlet that is not correctly wired could place hazardous voltage
on metal parts of the system or the products that attach to the system. It is the
customer’s responsibility to ensure that the outlet is correctly wired and
grounded to prevent an electrical shock. (RSFTD201)
DANGER
To prevent a possible electrical shock when installing the system, ensure that
the power cords for all devices are unplugged before installing signal cables.
(RSFTD202)
DANGER
To prevent a possible electrical shock when adding or removing any devices
to or from the system, ensure that the power cords for those devices are
unplugged before the signal cables are connected or disconnected. If possible,
disconnect all power cords from the existing system before you add or
remove a device. (RSFTD203)
© Copyright IBM Corp. 2000, 2001 ix

DANGER
To prevent power from switching on automatically during service procedures,
select manual or secure mode on the system unit control panel or disconnect
the cables that connect to J15 and J16 on the frame being serviced.
(RSFTD211)
DANGER
Use caution when installing or modifying telephone lines. Disconnect the
lines at the network interface before working with telephone wires that are
not insulated. Never install telephone jacks that are not waterproof in wet
locations. Do not install or modify telephone lines or use a telephone (other
than a cordless type) during an electrical storm. Do not use a telephone to
report a gas leak in the area of the leak. (RSFTD213)
Caution Notices
A caution notice calls attention to a situation that is potentially hazardous to
people because of some existing condition.
CAUTION:
Be careful when removing or installing this part or unit. This part or unit is
heavy, but has a weight smaller than 18 kilograms (39.7 pounds). (RSFTC201)
CAUTION:
The weight of this part or unit is between 18 and 32 kilograms (39.7 and 70.5
pounds). It takes two persons to safely lift this part or unit. (RSFTC204)
CAUTION:
The battery is a lead-acid battery. To avoid possible explosion, do not burn.
Exchange only with the IBM-approved part. Recycle or discard the battery as
instructed by local regulations.
In the United States, IBM has a process for the collection of this battery. For
information, call 1-800-426-4333. Have the IBM part number for the battery unit
available when you call. (RSFTC225)
CAUTION:
The battery is a lithium battery. To avoid possible explosion, do not burn or
charge the battery. Exchange only with the IBM-approved part. Discard the
battery as instructed by local regulations. (RSFTC227)
CAUTION:
The circuit card contains lead solder. To avoid the release of lead (Pb) into the
environment, do not burn. Discard the circuit card as instructed by local
regulations. (RSFTC234)
CAUTION:
This assembly has a circuit card that contains lead solder. To avoid the release of
lead (Pb) into the environment, do not burn. Discard the assembly as instructed
by local regulations. (RSFTC235)
xiSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1

CAUTION:
The optical link card contains a laser. To avoid the release of toxic substances
into the environment, do not burn. Discard the optical link as instructed by local
regulations. (RSFTC236)
Attention Notices
An attention notice indicates the possibility of damage to a program, device,
system, or data.
Laser Safety Information
CAUTION:
This product may contain a CD-ROM which is a class 1 laser product.
(RSFTC240)
Product Recycling and Disposal
Components of the system, such as structural parts and circuit cards, can be
recycled where recycling facilities exist. IBM does not currently collect and recycle
used IBM products from customers in the United States other than those products
that are involved in trade-in programs. Companies are available to disassemble,
reutilize, recycle, or dispose of electronic products. Contact an IBM account
representative for more information.
The system unit contains batteries and circuit boards with lead solder. Before you
dispose of this unit, these batteries and circuit boards must be removed and
discarded according to local regulations or recycled where facilities exist. This book
contains specific information on each battery type where applicable.
Battery Return Program
In the United States, IBM has established a collection process for reuse, recycling,
or proper disposal of used IBM batteries and battery packs. For information on
proper disposal of the batteries in this unit, please contact IBM at 1-800-426-4333.
Please have the IBM part number that is listed on the battery available when you
make your call. For information on battery disposal outside the United States,
contact your local waste disposal facility.
Environmental Design
The environmental efforts that have gone into the design of the system signify
IBM’s commitment to improve the quality of its products and processes. Some of
these accomplishments include the elimination of the use of Class I
ozone-depleting chemicals in the manufacturing process, reductions in
manufacturing wastes, and increased product energy efficiency. For more
information, contact an IBM account representative.
Safety and Environmental Notices xi

xii iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1

Part 1. Problem Analysis
© Copyright IBM Corp. 2000, 2001 1

2iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1

Chapter 1. Starting Problem Analysis
Starting Problem Analysis ..........3
System Service Library Structure.......3
Problem Analysis, Repair, and Parts ....3
Starting Point for All Problems .......4
Using the Service Action Log .........9
Using the Product Activity Log ........11
UsingtheProblemLog..........12
Handling Problems for Non-critical Resources . . . 13
Analyzing Intermittent Problems .......14
Safety ...............14
Special Tools and Equipment .......14
How to Use This Intermittent Problem Section . 15
Correcting Intermittent Problems ......15
What Is an Intermittent Problem? .....15
Hints for Correcting Intermittent Problems . . 15
Types of Intermittent Problems ......16
General Intermittent Problem Checklist ....16
How to Analyze the Intermittent Problem . . . 20
Intermittent Symptom Table ........20
Failing Area INT-PIP Table ........21
Analyzing IPL Problems ..........22
Start Analyzing IPL Problems Here .....22
Cannot Perform IPL from the Control Panel (No
SRC)................22
Cannot Perform IPL at a Specified Time (No
SRC)................23
Cannot Perform IPL from a Remote Location (No
SRC)................27
System Hangs or Loops (No SRC) .....31
Logical Partition Hangs or Loops (No SRC) . 34
Cannot Automatically Perform an IPL after a
PowerFailure ............36
Analyzing Power Problems .........37
Start Analyzing Power Problems Here ....37
Cannot Power On System Unit (No SRC) . . . 38
Cannot Power On Secondary Frame or Unit (No
SRC)................42
System or Expansion Unit Cannot Become
PoweredOff.............56
Starting Problem Analysis
System Service Library Structure
Problem Analysis, Repair, and Parts
The purpose of this book is to provide complete instructions for the task of
locating and repairing system problems. It uses directed procedures in a specific
logical order to accomplish this task. This book is not meant to teach theory of
operations. Therefore, there is no index to information that could cause further
problems with the system if it was not used correctly. References within the
directed procedures point to other sources of information, such as the iSeries Service
Functions, for more information about common tasks.
The Problem Analysis, Repair, and Parts book is broken into two main parts:
vPart one deals with problem isolation and determining which field replaceable
unit (FRU) needs to be replaced, if any.
vPart two deals with locating the FRU, including any addressing information
needed, and replacing it.
Towards that end, the Problem Analysis, Repair, and Parts book has the following
chapters:
© Copyright IBM Corp. 2000, 2001 3

vChapter 1 is the starting point for all service actions. It provides an introduction
and procedures for problems that occur without an SRC, such as a system that
will not power on.
vChapter 2 contains information about system reference codes (SRCs) and the
unit reference code (URC) information that is contained within the SRCs.
vChapter 3 contains:
–Problem isolation procedures for specific types of problems
–Failing item information
–Symbolic FRU information
vChapter 4 contains FRU removal and installation procedures.
vChapter 5 contains locations information, the parts assemblies, and FRU part
numbers.
vChapter 6 contains data recovery procedures and general system information.
vThe appendixes contain information such as Problem Summary Forms and
System Safety Inspection information.
Starting Point for All Problems
Before you start problem analysis, review the “System Service Library Structure”
on page 3 and how the system and its devices connect together (see “System
Architecture and Configuration”in the iSeries Service Functions information). Also
review the system reference code (SRC) definition and formats and how they
appear (see “System Reference Code (SRC) Record”in the iSeries Service Functions
information). Also understand how the control panel works (see “Control Panel
Functions”in the iSeries Service Functions information). Also, review any
supplemental RPQ pages in this guide.
Note:
Starting Problem Analysis
4iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1

vFor instructions on displaying SRCs, see the “System Reference Code
(SRC)”section in the iSeries Service Functions information.
vUse the Help Key text that is available through these procedures for
additional information.
vIf the Verification of System Password Failed display appears during IPL,
see “System Password”in the iSeries Service Functions information for
instructions.
1. Make sure that the system operator has collected all the necessary information
for the reported problem. If not, you will need to work with the system
operator and collect the information by referring to the topic ″Troubleshooting
Your System″in the http://www.ibm.com/eserver/iseries/infocenter or
″Getting Started With iSeries″on the Information Center CD.
2. Record the IPL type and mode before starting this service call.
Note: When you complete this service call, return the system to this IPL type
and mode or to the IPL type and mode specified by the customer.
DANGER
To prevent power from switching on automatically during service
procedures, select manual or secure mode on the system unit control panel
or disconnect the cables that connect to J15 and J16 on the frame being
serviced. (RSFTD211)
3. You must determine if the system has multiple logical partitions or only one
Primary partition. Go to “Determining if the System Has Logical Partitions”on
page 943, before continuing with this procedure.
4. All systems have a minimum of one logical partition and it’s name is
″Primary″. In step 3 you determined if this system has multiple logical
partitions. Does this system have multiple logical partitions?
Yes You must look for configuration changes and missing resources in the
logical partition (primary or secondary) that reported the problem.
Continue with the next step in this procedure to look for configuration
changes in the logical partition with the problem.
No You must look for configuration changes and missing resources in the
Primary partition. Continue with the next step in this procedure to look
for configuration changes in the Primary partition.
5. Can you get to SST or DST for the partition with the problem (Primary or a
logical secondary)?
No Yes
↓
Many system problems occur after changing the system configuration
or installing or changing a program. If the configuration has been
changed or if a program has been installed or changed, verify that all is
correct before continuing with this procedure.
Check the system configuration:
Use the display hardware configuration service function to
check for any missing or failed hardware.
To display missing or failed hardware perform the following:
a. On the command line, enter
Starting Point
Chapter 1. Starting Problem Analysis 5

STRSST
If you cannot get to SST, select DST (see “Accessing
Dedicated Service Tools”in the iSeries Service Functions).
Note: Do not IPL the system to get to DST.
b. On the Start Service Tools Sign On display, type in a User ID
with QSRV authority and Password.
c. Select Start a service tool.
d. On the Start a Service Tool display, select the Hardware
service manager.
e. On the Hardware Service Manager display, select Logical
hardware resources
f. On the Logical Hardware Resources display, select System
bus resources.
g. Select the function keys for failed or non-reporting resources.
Continue with the next step in this procedure.
6. Use the Symptom column of Table 1 and find the best description of the reason
for this service action. Then follow the instructions in the What You Should Do
column.
Table 1. Start Table
Symptom What You Should Do
Intermittent Problems
You suspect an intermittent problem. Go to “Analyzing Intermittent Problems”on
page 14.
DST/SST functions are available on the Primary system console (console of the Primary
partition) and the symptom is:
vThere is a system reference code or
message.
vThe customer reports reduced system
function.
vThere is a system performance problem.
vThere are Failing, Missing, or Inoperable
system resources.
Go to “Using the Service Action Log”on
page 9.
Note: On most systems with multiple
partitions, it is common to have one or more
″Missing or Non-reporting″system bus
resource(s) under Hardware Service
Manager. See iSeries Service Functions for
details.
There is an SRC displayed in function 5 on
the Control Panel.
Go to “Analyzing Power Problems”on
page 37.
The system is not operational and the symptom is:
There is an IPL problem, the system
attention light is on, and blocks of data
appear for 5 seconds at a time before
moving to the next block of data for 5
seconds, and so on until 5 seconds of a
blank control panel appears at which time
the cycle repeats.
These blocks of data are functions 11
through 13. The first data block after the
blank screen is function 11, the second block
is function 12, and so on. Use this
information to fill out Problem Summary
Form information. Then Perform “SP-PIP42”
on page 438.
You have a power problem, the system or an
attached unit will not power on or will not
power off, or there is an SRC in function 5
(05-1xxx-xxxx).
Go to “Analyzing Power Problems”on
page 37.
There is an SRC in function 11 and the
system attention light is on.
Go to “Chapter 2. Unit Reference Codes”on
page 59.
Starting Point
6iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1