Ibm 2274 Manuel d'utilisateur Page 1

Hardware Maintenance Servicefor Service Level AMachine Type 2274

x PERIGO:Para evitar choques elétricos, não conecte ou desconecte nenhum cabo, nem efetue instalação, manutenção ou reconfiguração deste produto dur

66 IBM Desktop System HMMKeyboard001 - START•Power off system unit and ensure the keyboard plug is connected properly. 002 -•Insert the diagnostic

Check Procedures 67MouseNOTE: A sticking key button can cause the mouse to operate incorrectly. If you suspect this, go to “Keyboard” on page 66. 00

68 IBM Desktop System HMM008 - ARE THERE ANY BROKEN PINS IN THE MOUSE PLUG? (YES, GO TO STEP 010. NO, READ AHEAD.)•Try with a known good mouse.009

Check Procedures 69Power Supply001 - STARTATTENTION: Check the Power Override switch, situated at the back of the machine, just above the connector f

70 IBM Desktop System HMM005 - DOES THE POWER SUPPLY FAN RUN? (YES, READ AHEAD. NO, GO TO STEP 009)•With the system powered on and the power supp

Check Procedures 71007 - DO YOU HAVE AN OHM READING WHEN THE SWITCH IS PRESSED AND AN OPEN READING WHEN THE SWITCH IS RELEASED? (YES, READ AHEAD. NO

72 IBM Desktop System HMMMonitorFirst, set the system to VGA mode. To do this in Windows 98, depress the F8 function key during startup. Safe mode

Check Procedures 73NOTE: If the monitor was not sold together with the system unit, you may need to refer to the service information provided with th

74 IBM Desktop System HMMUndetermined ProblemsIf an error code, error message or error beeps is present, go to “Index of Symptoms, Messages, Error

Check Procedures 758. If the symptom changes, go to “Index of Symptoms, Messages, Error Codes, or Beeps” on page 38 or to the check procedure for the

Notices xiCUIDADO: Ao substituir a bateria, utilize apenas o Número de Peça IBM 33F8354 ou um tipo de bateria equivalente recomendado pelo fabricante.

76 IBM Desktop System HMM

Diagnostic Aids 77Diagnostic AidsIntroduction ...78Power-On Self Test ...

78 IBM Desktop System HMMIntroductionThis section explains the diagnostic aids, power-on self test (POST) and diagnostics progra(PC-Doctor), that

Diagnostic Aids 79Power-On Self TestEach time you power-on the system, the power-on self test (POST) is initiated. Several items are tested during PO

80 IBM Desktop System HMM4. If no keyboard keys are pressed, and if POST is completed without errors, the system will then proceed with the loadin

Diagnostic Aids 81Diagnostic DisketteWARNING: This manual is intended to test the IBM Personal Computer Type 2274 machine type only. Testing devices

82 IBM Desktop System HMMUsing Diagnostic Program from Recovery CD1. Insert the Personal Computer recovery CD into the CD-ROM drive then restart c

Diagnostic Aids 83Diagnostics Program FeaturesDiagnostics program (PC-Doctor) includes the following features: Table 3- 1 Diagnostic Program Main Men

84 IBM Desktop System HMMHardware Info• VGA Information• Software Interrupts• SCSI Devices• I/O Use• IDE Drive Info• PCI Information• PNPIS

General Information 85Repair InformationRemovals and Replacements ...86Handling ESD-Sensitive Parts ...

xii diretamente com instrumentos óticos, e evite exposição direta ao raio. CUIDADO: A corrente elétrica proveniente de cabos de alimentação, de tele

86 IBM Desktop System HMMRemovals and Replacements BEFORE REMOVING ANY FRU, POWER-OFF THE COMPUTER, UNPLUG ALL POWER CORDS FROM ELECTRICAL OUTLETS

General Information 87Handling ESD-Sensitive PartsMany electronic parts are sensitive to electrostatic discharge (ESD). To prevent damage when workin

88 IBM Desktop System HMMIdentifying the Parts of the System UnitThis computer system has four bays that can hold 5.25-inch and 3.5-inch drives.

General Information 89disk, tape, or Zip drive.3. Bay 3.This drive bay can hold a 3.5-inch slim drive, such as a diskette, hard disk, tape, or Zip dr

90 IBM Desktop System HMMCover•Disconnect the system unit power cord.•Remove the 4 screws at the back of the tower.•Insert a screwdriver under one

General Information 91NOTE: Replacing the Cover•To replace the tower cover, lower the cover down over the tower, pressing in on the sides so the hoo

92 IBM Desktop System HMMBay PanelsIf you remove a drive from a bay and you do not intend to install a new drive immediately, reinstall the bay pa

General Information 93Bay 1- 5.25-In. Bay (Internal or External Access) •Disconnect any cable on the drive (note location and orientation of cables).

94 IBM Desktop System HMMBay 3 - 3.5-In. Bay (Internal or External Access)Bay 4 - 3.5-In. Bay (External Access for Diskette Drive) •Disconnect the

General Information 95NOTE: Reinstall the 3.5-in Drive Frame•Before reinstalling the drive frame into the main unit, make sure the upper and lower d

Notices xiii

96 IBM Desktop System HMMFront Panel•Remove the 2 screws and release the 6 latches that holds the front panel.•Gently remove the front panel from

General Information 97Power Supply•Disconnect all cables necessary before removal (note location of cables).•Remove the four screws from the chassis.

98 IBM Desktop System HMMAdapter CardsNOTE: 1. Before removing an adapter card, note the location of the adapter card and any cables. When removin

General Information 99Memory(DIMMCAUTION: Memory modules are sensitive to static discharge.•Press the levers on both sides of the socket down and out

100 IBM Desktop System HMMAMD K7 Duron Processor NOTE: Determine the type of processor you are installing and make sure the jumpers are set correc

General Information 101NOTE: Installing the processor•Place the ZIF socket release lever to the release (up) position.•Insert the new processor, matc

102 IBM Desktop System HMMSystem Backup BatteryCAUTION: All BIOS configuration settings will be lost when the backup battery is removed!ATTENTION:

General Information 103Indicator LED and Cable•Push in on the indicator LED and remove from the rear.•Disconnect the LED and cable from the systeboar

104 IBM Desktop System HMMSystem Board•Remove all adapter cards. •Disconnect all cables connected to the system board. Note the location and orien

General Information 105•Upgrade the BIOS version on the new system board using the BIOS upgrade utility. •Change the Machine Type and Serial Number i

xiv

106 IBM Desktop System HMM

Parts/Test Point Locations 107Parts/Test Point Locations Introduction ...108System Board Jumpers

108 IBM Desktop System HMMIntroductionThis chapter contains system board layouts and jumper settings. It is useful when you are asked to measure v

Parts/Test Point Locations 109System Board Jumpers and Connectors NOTE: The blackened pin of a jumper represents pin 1. System Board Connector Functi

110 IBM Desktop System HMMNOTE: The white corner of the jumper block represents pin 1.CN6 HDD LED connector HDD LEDCN7 Audio connectorCN10 AGP vid

Parts/Test Point Locations 111Power Supply Connectors and VoltagesRefer to the following figures when checking for voltages on power supply cable con

112 IBM Desktop System HMM 14 +5Vdc Green15 Ground Black16 Ground Black17 Ground Black18 no connect no connect19 +5Vdc Red20 +5Vdc RedPower Supply

Parts/Test Point Locations 113Network CardsNOTE: While transferring the data,”Act” LED emits light to indicate a ready state and the link indicators

114 IBM Desktop System HMMFactory-Installed Modem Card LayoutGVCAskeyGVC Factory-Installed Modem Card Connector FunctionsItem Function Connect to.

Parts/Test Point Locations 115Video CardsNvidia M64 w/ TV Out, 32MBNvidia NV10 w/ TV Out, 32MB

Notices xv

116 IBM Desktop System HMM1Optional output from monitor.2Note: The IEEE-1394 internal cable bundle needs an outer shield to minimize internal cros

Parts/Test Point Locations 1173.5-In. Hard Disk Drive Jumper SettingsThe configuration of the following jumpers control the drive's mode of oper

118 IBM Desktop System HMMThe configuration of the following jumpers control the drive's mode of operation:•DS - Drive Select (For Master onl

Parts/Test Point Locations 119CD-ROM DriveATTENTION: Either <option 1> or <option 2> CD-ROM drive may come with your machine. Their front

120 IBM Desktop System HMMATTENTION: Make sure to turn off the power beforemanual disc eject operation.CD-ROM Front Panel Introduction Item Descri

Parts/Test Point Locations 121CD-ROM Drive Rear Panel Connectors and JumpersNOTE: CD-ROM drives may come with item no. 5 (digital audio output) conne

122 IBM Desktop System HMMCD-ROM R/W DriveATTENTION: Either <option 1> or <option 2> CD-ROM R/W drive may come with yourPersonal Compu

Parts/Test Point Locations 123CD-ROM R/W Drive Rear Panel Connectors and JumpersNOTE: CD-ROM R/W drives may come with item no. 5 (digital audio outpu

124 IBM Desktop System HMMDVD-ROM DriveFront Panel and Emergency-Exit DVD-ROM Front Panel IntroductionItem Description1 Open/Close Button2 Disc In

Parts/Test Point Locations 125DVD-ROM Drive Rear Panel Connectors and Jumpers DVD-ROM Drive Rear Panel Connectors and JumpersItem FunctionConnect to.

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126 IBM Desktop System HMMDIMM ConfigurationsThe 2274 system board has three DIMM sockets. A maximum of 384MB memory may be installed. You can ins

Parts/Test Point Locations 127System Board Connector Pin SignalsMonitor Port SignalsSerial Port SignalsPin Signal NameI/O Pin Signal NameI/O1 Red Vi

128 IBM Desktop System HMMParallel Port SignalsMouse Port SignalsKeyboard Port SignalsPin Signal Name I/O Pin Signal Name I/O1 Strobe O 14 Auto

Parts/Test Point Locations 129Diskette Drive Cable Connector SignalsPin Signal NameI/O Pin Signal NameI/O1 Ground 18 Direction 02 Density Select

130 IBM Desktop System HMMIDE Cable Connector SignalsPinSignal Name I/O PinSignal Name I/O1 Host Reset O 21 No Connection 2 Ground 22 Ground3 Hos

Diagnostic Aids 131Safety Inspection GuideGeneral Guidelines ...132

132 IBM Desktop System HMMGeneral GuidelinesThe purpose of this Safety Inspection Guide is to help you identify possible unsafe conditions on mach

Parts Catalog 133Parts CatalogAbbreviations ...134System Assembly ...

134 IBM Desktop System HMMAbbreviations In this chapter, the following abbreviations are used to identify country and language version:Country Lan

Parts Catalog 135System AssemblyAssembly 1: System UniAsm-IndexFRU NumberDescription1-1 22P2259 Main Bezel (w/ Front USB), White, Aptiva1-1 22P2270 M

Notices xviiPERIGO:Pour éviter tout risque de choc électrique, ne manipulez aucun câble et n'effectuez aucune opération d'installation, d&ap

136 IBM Desktop System HMM1-9 19K3649 Socket K7 Duron 64K/200 600MHz1-9 19K3650 Socket K7 Duron 64K/200 700MHz1-10 19K3653 Fansink (Duron Processo

Parts Catalog 137Assembly 2: Diskette, Hard Drive and Zip DriveAsm-IndexFRU NumberDescription2-1 02K2299 3.5", 3 mode MKE (JU256A276P)2-2 02K260

138 IBM Desktop System HMMAssembly 3: CD/DVD-ROM DriveAsm-IndexFRU NumberDescription3-1 00N8328 40X CD-ROM, White3-1 01N1952 4X4X32X CD-RW (Read/W

Parts Catalog 139Assembly 4: Power CordAsm-IndexFRU NumberDescription4-NS 02K0545 Power Cord - China4-NS 13F9939 Power Cord - ANZ4-NS 14F0032 Power C

140 IBM Desktop System HMMAssembly 5: Keyboard and MouseAsm-IndexFRU NumberDescription5-1 37L2514 104 Palm Rest US ENG103P, US/China/ANZ/Singapore

FRU Number List 141Appendix A. FRU Number ListFRU Number Asm-Index Page00K8183 3-NS 13800N8328 3-1 13801K4200 1-NS 13601K4278 1-13 13601N1940 1-NS 13

142 IBM Desktop System HMM20L2197 1-2 13522P2259 1-1 13522P2261 1-6 13522P2262 1-NS 13622P2264 1-NS 13622P2270 1-4 13522P2270 1-1 13522P2275 1-12

Online Support 143Appendix B. Online SupportInformationThis section describes online technical support services available to help repair the Persona

144 IBM Desktop System HMMHere are some useful IBM Internet addresses for Personal Computer information: http://www.ibm.com/pc PC C

Index 145IndexAAGP 3AudioCheck Procedure, 60BBIOSFlash Update Procedure, 12Model Number and Serial Number, 13BIOS Setup Utility 14Disk Drives, 17Mai

xviii ATTENTION:Remplacez la pile usagée par une pile de référence identique exclusivement - voir la référence IBM - ou par une pile équivalente rec

146 IBM Desktop System HMMESD 87External Ports 4HHard Disk DriveCable Connector Signals, 130Hard Disk Drive, 4Hardware Interfaces, 8IIDE Cable Con

Index 147Port SignalsKeyboard, 128Monitor 127Mouse, 128Parallel Port, 128POST, 38, 79Power consumption, 28Power Management 5Power SupplyCheck Proced

148 IBM Desktop System HMMVVideo Cards 115Voltage SupplySwitch Settings, viiWWeight, 28

Printed in U.S.A.International Business Machines Corporation Old Orchard Road, Armonk, New York 10504Part Number:

Notices xixl'observer à l'aide d'instruments optiques. Évitez une exposition directe au rayon. ATTENTION:Le courant électrique circulan

First Edition (May, 2000)The following paragraph does not apply to any state or country where such provisions are inconsistent with local law: INTERNA

xx VORSICHT:Aus Sicherheitsgründen bei Gewitter an dieseGerät keine Kabel anschließen oder lösen. Ferner keine Installations-, Wartungs- oder Rekonf

Notices xxiACHTUNG:Eine verbrauchte Batterie nur durch eine Batterie mit der IBM Teilenummer 33F8354 oder durch eine voHersteller empfohlene Batterie

xxii Instrumenten betrachten und den Strahlungsbereich meiden. ACHTUNG: An Netz-, Telefon- und Datenleitungen können gefährliche elektrische Spannu

Notices xxiiiPERICOLO:Per evitare il pericolo di scosse elettriche durante i temporali, non collegare o scollegare cavi, non effettuare l'install

xxiv ATTENZIONE:Quando si sostituisce la batteria, utilizzare solo una batteria IBM o batterie dello stesso tipo o di tipo equivalente consigliate d

Notices xxvATTENZIONE:Quando è installata un'unità CD-ROM, notare quanto segue:L'utilizzo di controlli, regolazioni o l'esecuzione di p

xxvi

Notices xxvii

xxviii PELIGRO:Para evitar una posible descarga eléctrica, no conecte ni desconecte los cables ni lleve a cabo ninguna operación de instalación, de

Notices xxixIMPORTANT: Al cambiar la batería, utilice únicamente la batería IBM Número de pieza 33F8354 o un tipo de batería equivalente recomendado p

iiiContentsContents ...iiiNotices ...

xxx Cuando la unidad está abierta se generan emisiones de rayos láser. No dirija la mirada al haz, no lo observe directamente con instrumentos óptic

Notices xxxiLaser Compliance StatementThe CD-ROM drive in the computer is a laser product. The CD-ROM drive's classification label (sample shown

xxxii TrademarksThe following are trademarks of the IBM Corporation in the United States or other countries or both: ATHelpCenter IBMOperating Syste

Notices xxxiiiPrefaceThis manual contains service information for the 2274 Service Level A (SL-A) model of the IBM Personal Computer, worldwide. This

xxxiv

General Information 1General InformationIntroduction ...2Product Overview ...

2 IBM Desktop System HMMIntroductionThis chapter gives a general overview of the Personal Computer Type 2274, describes the standard and optional

General Information 3Product OverviewPersonal Computer Type 2274 has three PCI slots and supports the AMD K7 Duron processor family with Socket A pro

4 IBM Desktop System HMMExternal Port•2x/4x AGP video card (15-pin VGA connector)•Multi-Mode Parallel port (25-pin D-type connector)•Serial port (

General Information 5DVD-ROM Drive•5.25-in. high-performance, 8X/40X DVD-ROM IDE/AT drive. •Read data and audio play from standard, mini DVD-ROM and

ivElectrical input ...28Operating Requirements ...29Check Procedures .

6 IBM Desktop System HMMPower Supply•PC-98 compatible 145W ATX power supply •Switchable high/low voltage selectionInternal Cabling •Two 40-pin rib

General Information 7Keyboard •104-key, rubber dome Rapid Access™II keyboard with 1.8-m (5.8-ft.) cableMouse•4 Button PS/2 Sleek or ScrollPoint™II mo

8 IBM Desktop System HMMHardware InterfacesThe following peripheral interfaces for adapters, options, and drives are supported in the system unit.

General Information 9Parallel port Supports SPP (IBM PC/XT, PC/AT, PS/2) compatible, EPP (IEEE 1284 compliance), ECP (IEEE 1284 compliance) interfac

10 IBM Desktop System HMMCMOS ResetThis system does not deny access to Configuration/Setup Utility, if Administrative Password is not set. Execute

General Information 11Power-On PasswordA power-on password denies access to the system by an unauthorized user when the system is powered on. When a

12 IBM Desktop System HMMFlash (BIOS) Update Procedure NOTE: The flash update procedure does not change the model number and serial number inform

General Information 13BIOS-contained Model Number and Serial NumberThe model number and serial number information is stored in BIOS ROM and displayed

14 IBM Desktop System HMMBIOS Configuration/Setup UtilityThe Configuration/Setup Utility lets you review and change important information about th

General Information 15The following table lists specific keys on the keyboard that will help you move through the Configuration/Setup Utility Menus:C

vIndicator LED and Cable ...103System Board ...104Parts/Test Point Locations ...

16 IBM Desktop System HMMSave & Exit SettingsAfter changing any parameter in the Setup Configuration setting, return to Configuration/Setup Ut

General Information 17Exiting Without SavingPress Esc to return to the Main Menu when you have finished viewing settings and making changes. Frothis

18 IBM Desktop System HMMSerial Port SetupOnboard Serial Port 1 It comes with one 9-pin serial ports. This parameter will be allowed to set Au

General Information 19USB Mouse Support This parameter enables or disables the use of a USB keyboard outside of Windows. The default is Disabled.

20 IBM Desktop System HMMMPU-401 I/Q Address NOTE: The default is 330-333HGame Port (200-207H)NOTE: The default is Enabled.Startup OptionsFrom the

General Information 21Keyboardless Operation When enabled, the BIOS issues the seek command to the keyboard to move faster during POST. The default i

22 IBM Desktop System HMMPassword window.4. Type a password consisting of up to eight characters, then press Enter.5. Retype the password then pre

General Information 23and then press Enter. The message appears on the screen as below: “PASSWORD DISABLED!!!“Press any key to continue ...3.

24 IBM Desktop System HMMIMPORTANT: These six items are for shadowing ROM code on other expansion cards. Before you set these parameters, you need

General Information 25The default of Power Management is set to User Define, so it allows you to set each mode individually. HDD Power DownWhatev

viAppendix A. FRU Number List ...141Appendix B. Online Support ...143Index ...

26 IBM Desktop System HMMVideo Off MethodThis determines the manner in which the monitor is blanked. The default is set to V/H SYNC+Blank.When V/

General Information 27IRQ8 (RTC Alarm) The default is Enabled.IRQ9 (IRQ2 Redir) The default is Disabled.IRQ10 (Reserved) The default is Disabled.I

28 IBM Desktop System HMMis in suspend state. When it is set to S3(STR), only the system memory is working, the rest of the components are in su

General Information 29SpecificationsDimension (width x depth x height) •System unit: 190mm x 370 mm x 384 mm Weight •System unit: 12.7kg ( 28lb)

30 IBM Desktop System HMMOperating RequirementsAll machines require two power inputs: one for the system unit and one for the monitor display. The

Check Procedures 31Check ProceduresIntroduction ...32Start ...

32 IBM Desktop System HMMIntroductionThis chapter contains the check procedures used to diagnose the causes of product failures. The diagnostic in

Check Procedures 33StartThis is the entry point for all check procedures. The check procedures use failure symptoms, Power-On Self Test (POST) error

34 IBM Desktop System HMMThe hard disk drive contains pre-loaded software. Be sure to reload the software on the primary hard disk drive (Drive C)

Check Procedures 35including speakers and microphone from the system unit, except for the keyboard, mouse, and monitor.•Power off the system unit (un

Notices viiNoticesReferences in this publication to IBM products, programs, or services do not imply that IBM intends to make these available in all c

36 IBM Desktop System HMM•Compare the system configuration list with the actual devices installed in system. NOTE: If necessary, remove the machin

Check Procedures 37- Check all adapter card jumper settings. - Check all adapter card switch settings. - Check all adapter card cables and connectors

38 IBM Desktop System HMMIndex of Symptoms, Messages, Error Codes, or Beeps How to Use Error Messages: Use the messages, error codes, and beeps co

Check Procedures 39If you are unable to correct the problem using these two index tables, go to “Undetermined Problems” on page 74.NOTE: 1. If an er

40 IBM Desktop System HMM Table 2-1 POST Error Codes and Messages ListNOTE: To diagnose a problem, first find the BIOS error messages or codes in

Check Procedures 41Error Encountered Initializing Hard Drive1. Enter Configuration/Setup Utility to load the default setting2. IDE hard disk drive po

42 IBM Desktop System HMMMemory Address Error at ...Memory Parity Error at...Memory Size Has Changed Since Last BootMemory Verify Er

Check Procedures 43Floppy Disk(s) Fail (80) 1. Re-connect floppy disk drive2. Enter Configuration/Setup Utility and load the default settings.3. Flop

44 IBM Desktop System HMMTable 2-2 BIOS Error Beeps ListNOTE: To diagnose a problem, first find the BIOS error beeps in left column. If directed t

Check Procedures 45Table 2-3 Error Symptoms ListNOTE: To diagnose a problem, first find the error symptom in the left column. If directed to a check

viii Safety InformationDANGERTo avoid a shock hazard, do not connect or disconnect any cables or perform installation, maintenance, or reconfigurati

46 IBM Desktop System HMMIncorrect memory size shown or repeated during POST.1. Insert the memory modules in the DIMM sockets properly, then reboo

Check Procedures 47Media and drive are mismatched.1. Ensure that the diskette drive is configured correctly in the Disk Drives of Configuration/Setup

48 IBM Desktop System HMMDiskette drive test failed. 1. Diskette2. Diskette drive3. Diskette drive cable4. System boardHard Disk DriveNOTE: Ensure

Check Procedures 49CD/DVD-ROM DriveNOTE: Ensure CD/DVD-ROM drive is configured correctly in Configuration/Setup Utility, cable/jumper are set correct

50 IBM Desktop System HMMCD/DVD-ROM drive can play audio CD but no sound output.1. Ensure that the headphone jack of the CD/DVD-ROM has an output,

Check Procedures 51Modem ring cannot wake up system from suspend mode. 1. Ensure the “Modem Wake-Up on Ring” in Configuration/Setup Utility is set to

52 IBM Desktop System HMMDisplay problem not listed above (including blank or illegible monitor).1. “Monitor” on page 72.2. Load default settings

Check Procedures 53Power SupplyPressing power switch does not turn off system. (Only unplug power cord from electrical outlet can turn off system.)1.

54 IBM Desktop System HMMTroubleshootingFailing Parts or Assemblies: The check procedures generally help you trace a problem to one part or assemb

Check Procedures 55NOTE: If you cannot access the hard disk drive or load a diskette from Drive A or load a CD from the CD-ROM drive, make sure that

Notices ixbattery contains lithium and can explode if not properly used, handled, or disposed of. Do not:•Throw or immerse into water •Heat to more th

56 IBM Desktop System HMMNOTE: The CD-ROM drive that comes with systeunit should be configured as IDE Secondary Channel Master device. •Check all

Check Procedures 57•If the diagnostics program did not detect a failure, but the system still displays a failure: - If an error or other symptom appe

58 IBM Desktop System HMMFactory-Installed Modem CardNOTE: The factory-installed modem is a 56.6 Kbps modem with a cable of microphone-in and spea

Check Procedures 591. Start Microsoft Windows 98. 2. Select the Start icon. 3. Select Program, then select Accessories, Hyper Terminal. 4. Select an

60 IBM Desktop System HMMAudio (Not Supported by Diagnostics Program) IMPORTANT: Audio tests for the sound card cannot be carried out in the PC-Do

Check Procedures 61004 - • Perform the following under Windows 98.NOTE: If an operating system other than Microsoft Windows 98 is installed, the prog

62 IBM Desktop System HMM•If the error cannot be resolved, replace the system board.•End.

Check Procedures 63CD/DVD-ROM Drive001 - START•Insert the diagnostics diskette into the diskette drive and ensure that there is no CD/DVD in the CD/D

64 IBM Desktop System HMM005 - IS THE CD/DVD STILL NOT READABLE? (YES, READ AHEAD. NO, GO TO STEP 006.)• Replace system board.• End.006 - • Replac

Check Procedures 65Memory001 - START• Power off the system unit.• Insert the diagnostics diskette into the diskette drive. • Ensure that all DIMMs ar