IBM 7940 Problem Determination And Service Manual Download Page 26 | Manualshive

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Fan 1

Fan 2

Fan 3

SATA hard disk
drive 2

SATA hard disk
drive 1

CD or DVD drive

Power

Operator information panel

USB (2) (front)

PCI Express x16 riser card

Battery

PCI Express x8
riser card

HTX riser card

Operator information panel controls and internal connectors

The following illustration shows the controls and internal connectors on the operator
information panel. When the server is turned off, you can light the system-board
error LEDs for up to 30 seconds to indicate detected faults by pressing the light
path button.

Light-path button

USB cable connector

Signal cable connector

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

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Summary of Contents for 7940

Page 1: ...IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 2: ......

Page 3: ...IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 4: ...ices 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 ...

Page 5: ...sing 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 guide...

Page 6: ...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 ...

Page 7: ...p 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 ...

Page 8: ...vi IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 9: ...n 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 Se...

Page 10: ...exterior cover is not damaged loose or broken and observe any sharp edges 3 Check the power cord v Make 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 v Make sure that the power cord is the correct type as specified in Power cords on page 25 v Make sure that ...

Page 11: ... in the off position v Never assume that power has been disconnected from a circuit Check it to make sure that it has been disconnected v If 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 p...

Page 12: ...ation 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 x IB...

Page 13: ...equipment when there is evidence of fire water or structural damage v Disconnect the attached power cords telecommunications systems networks and modems before you open the device covers unless instructed otherwise in the installation and configuration procedures v Connect and disconnect cables as described in the following table when installing moving or opening covers on this product or attached...

Page 14: ...ry 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 v Throw or immerse into water v Heat to more than 100 C 212 F v Repair 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...

Page 15: ...he device v Use 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...

Page 16: ... 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 ...

Page 17: ...his 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 ...

Page 18: ...xvi IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 19: ...ned 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 v Installation Guide This printed document contains instructions for setting up the server and basic instructions for installing some opt...

Page 20: ...k 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 notice...

Page 21: ...rial Advanced Technology Attachment SATA Note Drive capacity and speed vary with model Serial Attached SCSI SAS drives are supported if an optional SAS adapter is installed Maximum Two SATA or two SAS drives Expansion slots v Two used in either of the following configurations One full height half length Hyper Transport HTX riser card and one half length PCI Express x16 riser card One full height h...

Page 22: ...50 60 Hz required v Input voltage low range Minimum 100 V ac Maximum 127 V ac v Input voltage high range Minimum 200 V ac Maximum 240 V ac v Input kilovolt amperes kVA approximately Minimum 0 126 kVA Maximum 0 500 kVA Notes 1 Power consumption and heat output vary depending on the number and type of optional features installed and the power management optional features in use 2 These levels were m...

Page 23: ...use CD eject or DVD eject button Press this button to release a CD from the CD drive or a DVD from the DVD drive Rack release latches Each side of the front of the server has a rack release latch Press these latches to remove the server from the rack Operator information panel This panel contains controls LEDs and connectors The following illustration shows the operator information panel Power con...

Page 24: ...ports IBM Director you can use IBM Director to light this LED remotely A system locator LED is also on the rear of the server v System error LED When this LED is lit it indicates that a system error has occurred An LED near the failing component on the system board is also lit to help isolate the error v USB connectors Connect a USB device to either of these connectors Notes 1 If you want to attac...

Page 25: ... page 99 Serial connector Connect a 9 pin serial device to this connector System locator LED This LED can be lit remotely by the system administrator to aid in visually locating the server If the server supports IBM Director you can use IBM Director to light this LED remotely A system locator LED is also on the front of the server USB connectors Connect a USB device to any of these four connectors...

Page 26: ...controls and internal connectors The following illustration shows the controls and internal connectors on the operator information panel When the server is turned off you can light the system board error LEDs for up to 30 seconds to indicate detected faults by pressing the light path button Light path button USB cable connector Signal cable connector 8 IBM System x3455 Type 7940 and 7941 Problem D...

Page 27: ...ration shows the switches and jumpers on the system board Power on password jumper J52 BMC update jumper J34 NMI switch SW1 Force power on jumper J37 BMC reset jumper J36 Boot block recovery jumper J51 Wake on LAN bypass jumper J48 Chapter 1 Introduction 9 ...

Page 28: ...auses an update of BMC firmware from ROM Force power on jumper J37 Off Power on override When installed this jumper forces the server power on overriding the power on button Power on password override jumper J52 1 and 2 Power on user password override Changing the position of this jumper bypasses the power on password check the next time the server is turned on and starts the Configuration Setup U...

Page 29: ...System board external connectors The following illustration shows the external connectors on the system board USB 4 Video Serial Ethernet 2 Ethernet 1 Chapter 1 Introduction 11 ...

Page 30: ...D DIMM 4 error LED DIMM 11 error LED DIMM 5 error LED DIMM 12 error LED DIMM 6 error LED Fan 1 error LED Fan 3 error LED Fan 2 error LED Battery error LED Slot 1 error LED Light path power LED Microprocessor 2 error LED Slot 2 error LED Microprocessor 1 error LED BMC heartbeat LED Microprocessor 2 VRD error LED Microprocessor 1 VRD error LED 12 IBM System x3455 Type 7940 and 7941 Problem Determina...

Page 31: ... the associated component has failed If the Microprocessor 1 VRD error LED or the Microprocessor 2 VRD error LED is lit the system board has failed Light path power LED With the server power cord connected this green LED remains lit With the server power cord disconnected and the light path button pressed this LED lights to indicate that the light path function is working BMC heartbeat LED This LE...

Page 32: ...14 IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 33: ...in ROM on the Ethernet controller v SATA firmware is stored in ROM on the integrated SATA controller v Major components contain vital product data VPD code You can select to update the VPD code during the BIOS code update procedure Configuring the server The ServerGuide Setup and Installation CD provides software setup tools and installation tools that are specifically designed for your IBM server...

Page 34: ...a device driver to enable the operating system to address the controller For device drivers and information about configuring the Ethernet controller see the Broadcom NetXtreme Gigabit Ethernet Software CD that comes with the server For updated information about configuring the controller see http www ibm com servers eserver support xseries index html Updating the BMC firmware Use the baseboard ma...

Page 35: ... prompt type UUID wr and press Enter The utility generates a random identifier 5 Restart the server Updating the DMI SMBIOS data You must update the Desktop Management Interface DMI when you replace the system board To update the DMI complete the following steps 1 Copy the DMI SMBIOS utility extrmdmi exe from the BIOS flash diskette to a DOS bootable diskette 2 Insert the diskette into an external...

Page 36: ...18 IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 37: ...0 and 7941 servers To check for an updated parts listing on the Web complete the following steps 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 Under Technical resources select Parts information Copyright IBM Corp 2007 19 ...

Page 38: ...1 2 3 4 5 6 7 8 9 12 11 10 10 13 14 15 16 17 18 19 20 IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 39: ...K7162 4 Riser card HTX optional 40K7166 5 Memory 1 GB type 7940 model C2x type 7940 and 7941 models A2x 32x 52x 72x 41Y2761 5 Memory 2 GB type 7940 models 62x 82x 46C7536 5 Memory 2 GB optional 41Y2764 5 Memory 4 GB optional 41Y2851 6 Microprocessor 2 1 GHz quad core 2262 with heat sink type 7940 and 7941 model 32x 43W7448 6 Microprocessor 2 3 GHz QC Proc 2266 with heat sink type 7940 model 52x 43...

Page 40: ...ront 3 5 inch 40K7145 17 Hard disk drive cage rear 3 5 inch 40K7146 18 CD RW DVD backplane 40K7168 19 Fan 40K7184 Battery system board 3 0 V 33F8354 Bracket kit 42C9420 Cable CD RW DVD 40K7158 Cable front panel 40K7152 Cable front panel USB 40K7150 Cable HDD SAS SATA 40K7154 CD drive 24x slim line optional 26K5427 CD drive combo optional 39M3559 CD drive combo optional 43W4587 CD drive slim ultrab...

Page 41: ... 42D3729 PCI E single port 4 GB fiber channel HBA controller optional 43W7510 PCI E dual port 4 GB fiber channel HBA controller optional 43W7512 PRO 1000 PF server adapter optional 42C1752 PRO 1000 GT dual port server adapter optional 73P5109 Rail kit 26K8077 SAS card model 62x 82x 25R8071 Service label system 44R6161 Ultra320 SCSI PCIe controller optional 43W4325 Product recovery CDs Table 5 desc...

Page 42: ...oprocessors Simplified Chinese 44W4061 Microsoft Windows Server 2003 R2 w SP2 32 bit Enterprise Edition 1 2 microprocessors Traditional Chinese 44W4062 Microsoft Windows Server 2003 R2 w SP2 32 bit Enterprise Edition 1 2 microprocessors Japanese 44W4063 Microsoft Windows Server 2003 R2 w SP2 Enterprise 32 bit Edition 1 2 microprocessors Korean 44W4064 Microsoft Windows Server 2003 R2 w SP2 Enterpr...

Page 43: ...on 32 bit 64 bit 1 8 microprocessors Traditional Chinese 46C8284 Power cords For your safety IBM provides a power cord with a grounded attachment plug to use with this IBM product To avoid electrical shock always use the power cord and plug with a properly grounded outlet IBM power cords used in the United States and Canada are listed by Underwriter s Laboratories UL and certified by the Canadian ...

Page 44: ...130 Denmark 39M5144 Bangladesh Lesotho Macao Maldives Namibia Nepal Pakistan Samoa South Africa Sri Lanka Swaziland Uganda 39M5151 Abu Dhabi Bahrain Botswana Brunei Darussalam Channel Islands China Hong Kong S A R Cyprus Dominica Gambia Ghana Grenada Iraq Ireland Jordan Kenya Kuwait Liberia Malawi Malaysia Malta Myanmar Burma Nigeria Oman Polynesia Qatar Saint Kitts and Nevis Saint Lucia Saint Vin...

Page 45: ...sed in these countries and regions 39M5219 Korea Democratic People s Republic of Korea Republic of 39M5199 Japan 39M5068 Argentina Paraguay Uruguay 39M5226 India 39M5233 Brazil Chapter 3 Parts listing Type 7940 and 7941 servers 27 ...

Page 46: ...28 IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 47: ...er parts in a safe place v If you must start the server while the cover is removed make sure that no one is near the server and that no other objects have been left inside the server v Do not attempt to lift an object that you think is too heavy for you If you have to lift a heavy object observe the following precautions Make sure that you stand safely without slipping Distribute the weight of the...

Page 48: ...he possibility of damage from electrostatic discharge observe the following precautions v Limit your movement Movement can cause static electricity to build up around you v The use of a grounding system is recommended For example wear an electrostatic discharge wrist strap if one is available Always use an electrostatic discharge wrist strap or other grounding system when you work inside the serve...

Page 49: ...eral devices and disconnect all power cords and external cables then remove the server from the rack 3 Remove the cover from the server a Loosen the captive screw on the back of the cover b Disengage the tabs on the sides of the cover from the matching slots on the sides of the chassis c Slide the cover toward the rear of the server and lift the cover off the server Installing the cover To install...

Page 50: ...page 29 2 Turn off the server and peripheral devices and disconnect all power cords and external cables then remove the server from the rack 3 Remove the server cover see Removing the cover on page 31 4 Lift the baffle up and out of the server Attention For proper cooling and airflow replace the air baffle before you turn on the server Operating the server with the air baffle removed might damage ...

Page 51: ...eated in the system board Attention For proper cooling and airflow replace the air baffle before you turn on the server Operating the server with the air baffle removed might damage server components 3 Install the cover see Installing the cover on page 31 4 Slide the server all the way into the rack until it latches 5 Reconnect the power cords and any cables that you removed 6 Turn on the peripher...

Page 52: ...ce the riser card assembly on a flat static protective surface 6 If an adapter is installed remove it from the riser card assembly see Removing an adapter on page 35 7 If you are instructed to return the riser card follow all packaging instructions and use any packaging materials for shipping that are supplied to you Installing a riser card assembly To install a riser card assembly complete the fo...

Page 53: ...apter complete the following steps 1 Read the safety information that begins on page vii and Installation guidelines on page 29 2 Turn off the server and peripheral devices and disconnect all power cords and external cables then remove the server from the rack 3 Remove the server cover see Removing the cover on page 31 4 Disconnect any cables from the adapter 5 Remove the riser card assembly from ...

Page 54: ...adapter 4 Install the riser card assembly in the server see Installing a riser card assembly on page 34 5 Perform any configuration tasks that are required for the adapter 6 Install the cover see Installing the cover on page 31 7 Slide the server into the rack 8 Reconnect the power cords and any cables that were removed 9 Turn on the peripheral devices and the server Removing the CD or DVD drive T...

Page 55: ...ult 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 2 Read the safety informatio...

Page 56: ...cted to return the CD or DVD drive follow all packaging instructions and use any packaging materials for shipping that are supplied to you Installing the CD or DVD drive To install the replacement CD or DVD drive complete the following steps 1 Read the safety information that begins on page vii and Installation guidelines on page 29 2 Follow the instructions that come with the new drive to set any...

Page 57: ...ve clicks into place 5 Install the cover see Installing the cover on page 31 6 Slide the server into the rack 7 Reconnect the power cords and any cables that you removed 8 Turn on the peripheral devices and the server Removing a memory module DIMM To remove a DIMM complete the following steps 1 Read the safety information that begins on page vii and Installation guidelines on page 29 Chapter 4 Rem...

Page 58: ... information that you must consider when installing DIMMs see the User s Guide on the IBM System x Documentation CD To optimize system performance in a single microprocessor or dual microprocessor configuration install DIMMs in the following sequence Do not install DIMMs in connectors 7 through 12 if microprocessor socket 2 system board identifier CPU2 is empty Table 6 DIMM installation sequence N...

Page 59: ...cover see Removing the cover on page 31 Attention To avoid breaking the retaining clips or damaging the DIMM connectors open and close the clips gently 4 Based on your server configuration select the applicable DIMM installation sequence from Table 6 on page 40 5 Open the retaining clip on each end of the DIMM connector 6 Touch the static protective package containing the DIMM to any unpainted met...

Page 60: ... server memory configuration has changed You must run the Configuration Setup Utility program to configure the DIMMs For additional information see the User s Guide on the IBM System x Documentation CD 9 DIMMs must be installed in pairs Repeat steps 5 through 8 for the second DIMM 10 Install the cover see Installing the cover on page 31 11 Slide the server into the rack 12 Reconnect the power cord...

Page 61: ...mation that begins on page vii and Installation guidelines on page 29 2 Push the fan assembly down into the server until it seats 3 Connect the cable of the replacement fan to the connector 4 Install the cover see Installing the cover on page 31 5 Slide the server into the rack 6 Reconnect the power cords and any cables that you removed 7 Turn on the peripheral devices and the server Removing the ...

Page 62: ...placing the system board battery you must replace it with a lithium battery of the same type from the same manufacturer v To order replacement batteries call 1 800 426 7378 within the United States and 1 800 465 7999 or 1 800 465 6666 within Canada Outside the U S and Canada call your IBM marketing representative or authorized reseller v After you replace the system board battery you must reconfig...

Page 63: ...tem board battery complete the following steps 1 Follow any special handling and installation instructions that come with the replacement battery 2 Use one finger to push the battery horizontally into the battery housing 3 Gently push the battery into the socket 4 Install the cover see Installing the cover on page 31 5 Slide the server into the rack 6 Reconnect the external cables then reconnect t...

Page 64: ...remove the power supply complete the following steps Keyhole Retainer pin 1 Read the safety information that begins on page vii and Installation guidelines on page 29 2 Turn off the server and peripheral devices and disconnect all power cords and external cables then remove the server from the rack 3 Remove the server cover see Removing the cover on page 31 4 Disconnect the power supply connectors...

Page 65: ...tainer pin from the keyhole then lift the power supply out of the server 7 If you are instructed to return the power supply follow all packaging instructions and use any packaging materials for shipping that are supplied to you Chapter 4 Removing and replacing server components 47 ...

Page 66: ...hnician To install the power supply complete the following steps Keyhole Retainer pin 1 Read the safety information that begins on page vii and Installation guidelines on page 29 2 Align the power supply keyhole with the chassis retainer pin 3 Slide the power supply into position inside the server 4 Install the three power supply mounting screws 5 Connect the power supply cables to the system boar...

Page 67: ...operator information panel To remove the operator information panel complete the following steps Operator information panel assembly 1 Read the safety information that begins on page vii and Installation guidelines on page 29 2 Turn off the server and peripheral devices and disconnect all power cords and external cables then remove the server from the rack 3 Remove the server cover see Removing th...

Page 68: ...ver and secure it with the two mounting screws 2 Connect the signal cable and the USB cable to the operator information panel 3 Install the cover see Installing the cover on page 31 4 Slide the server into the rack 5 Reconnect the power cords and any cables that you removed 6 Turn on the peripheral devices and the server 50 IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guid...

Page 69: ... and external cables then remove the server from the rack 3 Remove the server cover see Removing the cover on page 31 4 Remove the CD or DVD drive see Removing the CD or DVD drive on page 36 if present 5 Disconnect the signal cable and the power cable from the CD or DVD backplane 6 Remove the two mounting screws then remove the CD or DVD backplane from the server 7 If you are instructed to return ...

Page 70: ...th the two mounting screws 2 Connect the signal cable and the power cable to the CD or DVD backplane 3 Install the CD or DVD drive see Installing the CD or DVD drive on page 38 if one was removed 4 Install the cover see Installing the cover on page 31 5 Slide the server into the rack 6 Reconnect the power cords and any cables that you removed 7 Turn on the peripheral devices and the server 52 IBM ...

Page 71: ...t from the server see Removing the CD or DVD drive on page 36 5 Disconnect the power and signal cables from the CD or DVD drive backplane 6 Open the drive cage assembly retention latch then release the drive cage assembly by sliding it slightly toward the rear of the server 7 If a hard disk drive is installed disconnect the hard disk drive power and signal cables Note the cable locations for later...

Page 72: ...e cage assembly into the server then slide the drive cage assembly forward until it seats securely 4 Close the drive cage assembly retention latch 5 Install the cover see Installing the cover on page 31 6 Slide the server into the rack 7 Reconnect the power cords and any cables that you removed 8 Turn on the peripheral devices and the server 9 If you are instructed to return the disk drive cage as...

Page 73: ...ver cover See Removing the cover on page 31 4 Open the drive cage assembly retention latch then release the drive cage assembly by sliding it slightly toward the front of the server 5 If a hard disk drive is installed disconnect the hard disk drive power and signal cables Note the cable locations for later use in reinstalling the hard disk drive 6 Lift the drive cage assembly out of the server 7 I...

Page 74: ...e cage assembly toward the rear of the server until it seats securely 4 Close the drive cage assembly retention latch 5 Install the cover see Installing the cover on page 31 6 Slide the server into the rack 7 Reconnect the power cords and any cables that you removed 8 Turn on the peripheral devices and the server Removing the front hard disk drive Locate the documentation that comes with the hard ...

Page 75: ...age assembly on page 53 6 Disconnect the power cable and the signal cable from the hard disk drive 7 Place the drive cage assembly on a flat static protective surface 8 Remove the four drive mounting screws from the sides of the drive cage and slide the drive out of the cage 9 If you are instructed to return the drive follow all packaging instructions and use any packaging materials for shipping t...

Page 76: ...ing the CD or DVD drive on page 38 6 Install the cover see Installing the cover on page 31 7 Slide the server into the rack 8 Reconnect the power cords and any cables that you removed 9 Turn on the peripheral devices and the server 10 If you are instructed to return the hard disk drive follow all packaging instructions and use any packaging materials for shipping that are supplied to you Removing ...

Page 77: ...e signal cable from the hard disk drive 6 Place the drive on a flat static protective surface 7 Remove the four drive mounting screws from the sides of the drive cage and slide the drive out of the cage 8 If you are instructed to return the drive follow all packaging instructions and use any packaging materials for shipping that are supplied to you Installing the rear hard disk drive Locate the do...

Page 78: ...and signal cables to the drive 4 Install the rear hard disk drive cage assembly in the server see Installing the rear hard disk drive cage assembly on page 56 5 Install the cover see Installing the cover on page 31 6 Slide the server into the rack 7 Reconnect the power cords and any cables that you removed 8 Turn on the peripheral devices and the server 60 IBM System x3455 Type 7940 and 7941 Probl...

Page 79: ...il from your skin can cause connection failures between the contacts and the socket To remove a microprocessor and heat sink complete the following steps Microprocessor Microprocessor socket Microprocessor release lever Alignment marks Heat sink Captive screws 1 Read the safety information that begins on page vii and Installation guidelines on page 29 2 Turn off the server and peripheral devices a...

Page 80: ...hermal grease will contaminate it To install a microprocessor complete the following steps 1 Read the safety information that begins on page vii and Installation guidelines on page 29 Microprocessor Microprocessor socket Microprocessor release lever Alignment marks 2 Align the microprocessor with the socket note the alignment mark and the position of the notches then carefully place the microproce...

Page 81: ...e heat sink until they are snug and then alternate again until they are tight making sure that you do not overtighten any of them 5 Install the cover see Installing the cover on page 31 6 Slide the server into the rack 7 Reconnect the power cords and any cables that you removed 8 Turn on the peripheral devices and the server Chapter 4 Removing and replacing server components 63 ...

Page 82: ...firmware or restore the pre existing firmware that the customer provides on a diskette or CD image 4 Remove all riser card assemblies and adapters see Removing a riser card assembly on page 33 5 Remove the two air baffles from the system board See Removing an air baffle on page 32 6 Disconnect all cables from the system board Make a list of each cable as you disconnect it you can then use this as ...

Page 83: ... front of the server 12 Lift up the left side the side nearest to the power supply of the system board 13 Lift the rest of the system board and carefully remove it from the server being careful not to disturb any surrounding components 14 If you are instructed to return the system board follow all packaging instructions and use any packaging materials for shipping that are supplied to you Installi...

Page 84: ...ing an air baffle on page 33 7 Replace the riser card assemblies and adapters if any were installed see Installing a riser card assembly on page 34 8 Replace the four hex standoff screws on the video connector and the serial connector at the rear of the server 9 Install the cover see Installing the cover on page 31 10 Slide the server into the rack 11 Reconnect the power cords and any cables that ...

Page 85: ...e the primary method of testing the major components of the server The diagnostic programs are on the IBM Enhanced Diagnostics CD that comes with the server See Diagnostic programs messages and error codes on page 101 for more information POST When you turn on the server it performs a series of tests to check the operation of the server components and some optional devices in the server This serie...

Page 86: ...rvice technician Beep code Description Action 1 1 3 CMOS write read test failed 1 Reseat the battery 2 Clear CMOS memory See Recovering from a BIOS update failure Clearing CMOS on page 107 for information about how to clear CMOS memory 3 Replace the following components one at a time in the order shown restarting the server each time a Battery b Trained service technician only System board 1 1 4 B...

Page 87: ...me in the order shown restarting the server each time a DIMMs b Trained service technician only System board 1 3 2 First 64K RAM parity test failed 1 Reseat the DIMMs 2 Replace the following components one at a time in the order shown restarting the server each time a DIMMs b Trained service technician only System board 2 1 1 Secondary DMA register failed Trained service technician only Replace th...

Page 88: ...e failure Clearing CMOS on page 107 for information about how to clear CMOS memory 3 Replace the following components one at a time in the order shown restarting the server each time a Battery b Trained service technician only System board 2 3 1 Screen initialization failed Trained service technician only Replace the system board 2 3 2 Screen memory failed Trained service technician only Replace t...

Page 89: ...ck failed 1 Reseat the battery 2 Replace the following components one at a time in the order shown restarting the server each time a Battery b Trained service technician only System board 3 2 1 Serial port failed Trained service technician only Replace the system board 3 2 4 Failure comparing CMOS memory size against actual 1 Reseat the following components a DIMMs b Battery 2 Replace the followin...

Page 90: ...tem board 3 3 3 No operational memory in system Important In some memory configurations the 3 3 3 beep code might sound during POST followed by a blank display screen If this occurs and the Boot Fail Count feature in the Start Options of the Configuration Setup Utility program is set to Enabled its default setting you must restart the server three times to force the system BIOS to reset the CMOS v...

Page 91: ... b Beginning with the primary bank of DIMMs return one bank of DIMMs to the server at a time restarting the server each time until the beep code error returns c Replace one pair of DIMMs at a time in the failing bank with an identical pair of known good DIMMs restarting the server after each pair until the beep code error returns d Replace one DIMM at a time in the failing pair with an identical k...

Page 92: ...essor 2 and its VRM and restart the server v If no beep code occurs microprocessor 2 might have failed replace the microprocessor v If the beep code remains remove microprocessor 1 and install microprocessor 2 in the connector for microprocessor 1 then restart the server If no beep code occurs microprocessor 1 might have failed replace the microprocessor 3 Replace the following components one at a...

Page 93: ...e 99 3 Check to make sure that there are no failing DIMMs in the system by removing all of the DIMMs and then replacing them one pair at a time until either the failing DIMM pair is found or all memory fails indicating that the system board is bad 4 Trained service technician only If the system does not become operational when you swap out or replace the DIMMs replace the system board No beep and ...

Page 94: ...mation Viewing error logs from the Configuration Setup Utility program For complete information about using the Configuration Setup Utility program see the User s Guide on the IBM System x Documentation CD For a list of system event codes and error codes see BMC system event log messages on page 109 To view the error logs complete the following steps 1 Turn on the server 2 When the prompt Press F1...

Page 95: ...er internal interrupt internal timer channel 2 1 Reseat the system board 2 Trained service technician only Replace the system board 151 Real time clock error 1 Reseat the battery 2 Clear CMOS memory See Recovering from a BIOS update failure Clearing CMOS on page 107 for information about how to clear CMOS memory 3 Replace the following components one at a time in the order shown restarting the ser...

Page 96: ...ck error 1 Run the Configuration Setup Utility program select Load Default Settings make sure that the date and time are correct and save the settings 2 Reseat the battery 3 Clear CMOS memory See Recovering from a BIOS update failure Clearing CMOS on page 107 for information about how to clear CMOS memory 4 Replace the following components one at a time in the order shown restarting the server eac...

Page 97: ...restarting the server each time a DIMMs b Trained service technician only System board 289 DIMM disabled by user or system 1 If the DIMM was disabled by the user run the Configuration Setup Utility program and enable the DIMM 2 Reseat the disabled DIMM 3 Replace the following components one at a time in the order shown restarting the server each time a Disabled DIMM b Trained service technician on...

Page 98: ...ility program and load the defaults 3 Replace the following components one at a time in the order shown restarting the server each time a Hard disk drive b Trained service technician only System board 1800 Unavailable PCI hardware interrupt 1 Run the Configuration Setup Utility program and adjust the adapter settings 2 Remove each adapter one at a time restarting the server each time until the pro...

Page 99: ...bles d Trained service technician only System board 2400 Video controller test failure 1 Reseat the video adapter if installed See Video adapter information on page 120 for more video adapter information 2 Replace the following components one at a time in the order shown restarting the server each time a Video adapter if installed See Video adapter information on page 120 for more video adapter in...

Page 100: ...rocessor x b Trained service technician only System board 00180xxx A PCI adapter requested a resource that is not available 1 See http www ibm com servers eserver support xseries index html and search for MIGR 61663 for additional information on the error code 2 Make sure that the BIOS code is at the latest level 3 Run the Configuration Setup Utility program to verify that the interrupt resource s...

Page 101: ...ponents one at a time in the order shown restarting the server each time a Hard disk drive b Trained service technician only System board Checkout procedure The checkout procedure is the sequence of tasks that you must follow to diagnose a problem in the server About the checkout procedure Before performing the checkout procedure for diagnosing hardware problems review the following information v ...

Page 102: ...r is halted and no error message is displayed see Troubleshooting tables on page 86 and Solving undetermined problems on page 121 v For information about power supply problems see Solving power problems on page 119 v For intermittent problems check the error log see Error logs on page 76 and Diagnostic programs messages and error codes on page 101 Performing the checkout procedure To perform the c...

Page 103: ...on page 101 If you receive an error see Diagnostic error codes on page 103 If the diagnostic programs were completed successfully and you still suspect a problem see Solving undetermined problems on page 121 v Yes Find the beep code in POST beep codes on page 67 if necessary see Solving undetermined problems on page 121 Chapter 5 Diagnostics 85 ...

Page 104: ...pter 3 Parts listing Type 7940 and 7941 servers on page 19 to determine which components are customer replaceable units CRU and which components are field replaceable units FRU v If an action step is preceded by Trained service technician only that step must be performed only by a trained service technician Symptom Action The CD or DVD drive is not recognized 1 Make sure that v The IDE channel to ...

Page 105: ...time in the order shown restarting the server each time a CD or DVD drive b CD or DVD drive cable c CD or DVD drive backplane d Trained service technician only System board The CD or DVD drive tray is not working 1 Make sure that the server is turned on 2 Insert the end of a straightened paper clip into the manual tray release opening 3 Reseat the CD or DVD drive cable 4 Replace the CD or DVD driv...

Page 106: ...fully replace the drive that you removed with a new one A hard disk drive was not detected while the operating system was being started Reseat all hard disk drive cables then run the hard disk drive diagnostic tests again A hard disk drive that you are installing does not fit correctly in the cage Make sure that the type of drive is correct for this server see Chapter 3 Parts listing Type 7940 and...

Page 107: ...ndows or ASR devices that might be installed Note ASR utilities operate as operating system utilities and are related to the IPMI device driver If the reset continues to occur after the operating system starts the operating system might have a problem see Software problems on page 97 3 If neither condition applies check the BMC log see Error logs on page 76 USB keyboard mouse or pointing device pr...

Page 108: ... in the order in which they are listed in the Action column until the problem is solved v See Chapter 3 Parts listing Type 7940 and 7941 servers on page 19 to determine which components are customer replaceable units CRU and which components are field replaceable units FRU v If an action step is preceded by Trained service technician only that step must be performed only by a trained service techn...

Page 109: ...order in which they are listed in the Action column until the problem is solved v See Chapter 3 Parts listing Type 7940 and 7941 servers on page 19 to determine which components are customer replaceable units CRU and which components are field replaceable units FRU v If an action step is preceded by Trained service technician only that step must be performed only by a trained service technician Sy...

Page 110: ... 5 Trained service technician only Replace the system board The screen is blank 1 If you are using a USB connected monitor with an external USB hub disconnect the monitor from the hub and connect it directly to the server 2 Make sure that v The server is turned on If there is no power to the server see Power problems on page 95 v The monitor cables are connected correctly v The monitor is turned o...

Page 111: ...storted screen images If this happens turn off the monitor Attention Moving a color monitor while it is turned on might cause screen discoloration Move the device and the monitor at least 305 mm 12 in apart and turn on the monitor Notes a To prevent diskette drive read write errors make sure that the distance between the monitor and any external diskette drive is at least 76 mm 3 in b Non IBM moni...

Page 112: ...rver serverproven compat us v You followed the installation instructions that came with the device and the device is installed correctly v You have not loosened any other installed devices or cables v You updated the configuration information in the Configuration Setup Utility program Whenever memory or any other device is changed you must update the configuration 2 Reseat the device that you just...

Page 113: ...power cord is correctly connected to the server and to a working electrical outlet v Trained service technician only The microprocessor is correctly installed 3 If you just installed an optional device remove it and restart the server If the server now turns on you might have installed more devices than the power supply supports 4 Replace the following components one at a time in the order shown r...

Page 114: ...g the server each time a Failing serial device b Serial cable c Trained service technician only System board ServerGuide problems v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved v See Chapter 3 Parts listing Type 7940 and 7941 servers on page 19 to determine which components are customer replaceable units CRU and which component...

Page 115: ...re For memory requirements see the information that comes with the software If you have just installed an adapter or memory the server might have a memory address conflict v The software is designed to operate on the server v Other software works on the server v The software works on another server 2 If you receive any error messages while you use the software see the information that comes with t...

Page 116: ...the server is turned off provided that the server is still connected to power and the power supply is operating correctly Before you work inside the server to view error LEDs read the safety information that begins on page vii and Handling static sensitive devices on page 30 Remove the server cover and look inside the server for lit LEDs Removing the cover on page 31 If the server is not connected...

Page 117: ... light path button allows you to review error indications after ac power has been removed from the server Press and hold the button which is behind the operator information panel to relight the error LEDs that were lit before you removed power from the server The LEDs will remain lit for as long as you press the button to a maximum of 30 seconds Power supply LEDs The following minimum configuratio...

Page 118: ...ce technician Power supply LEDs Operator information panel power on LED Description Action AC DC Off Off Off No power to the server or a problem with the ac power source 1 Check the ac power to the server 2 Make sure that the ac power cord is connected to a functioning power source Lit Off Off DC source power problem 1 View the BMC system event log see Error logs on page 76 2 Replace the power sup...

Page 119: ...select either Extended or Basic 12 From the diagnostic programs screen select the test that you want to run and follow the instructions on the screen For help with the diagnostic programs press F1 You also can press F1 from within a help screen to obtain online documentation from which you can select different categories To exit from the help information press Esc To determine what action you shou...

Page 120: ...figuration Warning The test could not be run There was no failure of the hardware that was being tested but there might be a hardware failure elsewhere or another problem prevented the test from running for example there might be a configuration problem or the hardware might be missing or is not being recognized The result is followed by an error code or other additional information about the erro...

Page 121: ...servers on page 19 to determine which components are customer replaceable units CRU and which components are field replaceable units FRU v If an action step is preceded by Trained service technician only that step must be performed only by a trained service technician Error code Description Action 000 197 000 000 198 000 Test aborted 1 Check the test log for messages that indicate the cause of the...

Page 122: ... microprocessor n c Replace the system board 201 198 xxx Memory test aborted 1 Restart the server 2 Run the diagnostic test again 3 See the error log for additional information 201 199 xxx Unexpected error Test aborted 1 Restart the server 2 Run the diagnostic test again 3 Refer to the error log for additional information 201 xxx PBD Multiple DIMM failure v P CPU Number 1 4 v B Failing Bank Pair n...

Page 123: ...stablish drive parameters 1 Reseat the hard disk drive cables 2 Replace the following components in the order shown restarting the server each time a Hard disk drive cable b Hard disk drive 217 xxx 000 Failed fixed disk test 1 Reseat the hard disk drive 1 cables 2 Replace hard disk drive 1 3 Trained service technician only Replace the system board 217 xxx 001 Failed fixed disk test 1 Reseat the ha...

Page 124: ...tarting the server each time a Mouse or pointing device b Trained service technician only System board 405 xxx 000 Failed Ethernet test on controller on the system board 1 Make sure that Ethernet is not disabled in BIOS see Using the Configuration Setup Utility program on page 15 2 Trained service technician only Replace the system board 405 xxx 00n Failed Ethernet test on adapter in PCI Express s...

Page 125: ... and remove any adapter that impedes access to the jumper see Removing an adapter on page 35 Power on password jumper J52 BMC update jumper J34 NMI switch SW1 Force power on jumper J37 BMC reset jumper J36 Boot block recovery jumper J51 1 2 3 3 2 1 1 2 3 Wake on LAN bypass jumper J48 5 Move the boot block recovery jumper from pins 1 and 2 to pins 2 and 3 6 Install the cover see Installing the cove...

Page 126: ...u removed see Installing an adapter on page 36 then install the cover see Installing the cover on page 31 14 Install the server in the rack 15 Reconnect the external cables and power cords then turn on the attached devices and turn on the server 108 IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 127: ...event log Entry Number The position of the entry in the log Record ID The identifier used for record access Record Type This field shows the record type 02 System event record C0 OEM timestamped system event This record type is combined with the E1 record type for SMI events C1 OEM timestamped system event This record type is combined with the E0 record type for POST events E0 and E1 OEM non times...

Page 128: ... a deassertion event when the event is no longer occurring Some of the error codes and messages in the BMC log are abbreviated If you view the BMC log through the Web interface of the optional Remote Supervisor Adapter II SlimLine the messages can be translated IPMI BMC system event log messages The following table describes the possible IPMI BMC system event log messages and suggested actions to ...

Page 129: ...h Information only Planar 3 3V UC Deasserted Planar 3 3V LC Deasserted 02h 02h 16h 16h Information only Planar 5V UC Asserted Planar 5V LC Asserted 02h 02h 17h 17h Information only Planar 5V UC Deasserted Planar 5V LC Deasserted 02h 02h 17h 17h Information only Planar VBAT UNC Asserted Planar VBAT LNC Asserted 02h 02h 1Dh 1Dh Replace the battery Planar VBAT UNC Deasserted Planar VBAT LNC Deasserte...

Page 130: ...hat there are no obstructions to the airflow that the air baffles are in place and correctly installed and that the server cover is installed and completely closed 2 Trained service technician only Make sure that the heat sink for CPU n is installed correctly CPU 1 Temp UNR Deasserted CPU 1 Temp UC Deasserted CPU 1 Temp UNC Deasserted CPU 2 Temp UNR Deasserted CPU 2 Temp UC Deasserted CPU 2 Temp U...

Page 131: ...tion only VRD 1 Presense Detected Asserted VRD 2 Presense Detected Asserted 08h 08h 24h 25h Information only VRD 1 Power Supply Failure Asserted VRD 2 Power Supply Failure Asserted VRD 2 5V Power Supply Failuer Asserted VRD 1 8V Power Supply Failure Asserted VRD 1 2V Power Supply Failure Asserted 08h 08h 08h 08h 08h 24h 25h 2Ah 2Dh 2Fh Trained service technician only 1 Replace the power supply 2 R...

Page 132: ...talled and completely closed 2 Trained service technician only Make sure that the heat sink for CPU n is installed correctly 3 Trained service technician only Replace CPU n 4 Trained service technician only Replace the system board CPU 1 Prochot Deasserted CPU 2 Prochot Deasserted 07h 07h C0h C1h Information only System Power off Asserted 09h 01h Information only System Power off Deasserted 09h 01...

Page 133: ...the BMC system event log The following table describes the four BIOS record types logged in the BMC system event log You can obtain third party software to provide BMC system event log translations for detailed byte definitions and repair actions v Follow the suggested actions in the order in which they are listed in the Action column until the problem is solved v See Chapter 3 Parts listing Type ...

Page 134: ...n is stored in next log entry Byte 1 0x00 Byte 2 0x0C A PCI device was added PCI FRU information is stored in next log entry Byte 1 0x00 Byte 2 0x0D Requested resources not available Byte 1 0x00 Byte 2 0x13 Planar video disabled due to add in video card Byte 1 0x00 Byte 2 0x14 FRU information for PCI device partially disabled Byte 1 0x00 Byte 2 0x15 A PCI Device was partially disabled PCI FRU info...

Page 135: ...4 Failed memory row Byte 5 Spare memory row Byte 1 0x02 Byte 2 0x00 Byte 3 0x00 Memory sparing event start 1 Byte 1 0x02 Byte 2 0x00 Byte 3 0x02 Memory sparing event start 1 Resetting passwords If you forget the power on password or the administrator password you can reset the password after you perform one of the following actions v You can change the position of the power on password override ju...

Page 136: ...that begins on page Safety on page vii 2 Turn off the server and peripheral devices and disconnect all power cords and external cables then remove the cover see Removing the cover on page 31 3 Move the jumper on J52 from pins 1 and 2 the default to pins 2 and 3 to bypass the power on password check 4 Replace the cover connect the server to a monitor and then connect it to a power source 5 Turn on ...

Page 137: ...ated Solving Ethernet controller problems The method that you use to test the Ethernet controller depends on which operating system you are using See the operating system documentation for information about Ethernet controllers and see the Ethernet controller device driver readme file Try the following procedures v Make sure that the correct device drivers which come with the server are installed ...

Page 138: ...e error Video adapter information The following notes describe important information about the NVIDIA Quadro FX 1700 video adapter that comes preinstalled in some System x3455 server models v You can download and install the latest NVIDIA Quadro FX 1700 video adapter device driver from http www ibm com systems support v Only the following liquid crystal display LCD monitors are supported when an N...

Page 139: ...CD or DVD drive v Memory modules The minimum configuration requirement is 1 GB two 512 MB DIMMs in DIMM slots 5 and 6 v Microprocessor 2 if installed 4 Turn on the server If the problem is solved when you remove an adapter from the server but the problem recurs when you reinstall the same adapter suspect the adapter if the problem recurs when you replace the adapter with a different one suspect th...

Page 140: ...ice When you call for service have as much of the following information available as possible v Machine type and model v Microprocessor and hard disk drive upgrades v Failure symptoms Does the server fail the diagnostic programs If so what are the error codes What occurs When Where Is the failure repeatable Has the current server configuration ever worked What changes if any were made before it fa...

Page 141: ...the same locations v Address jumpers terminators and cabling v Software versions and levels v Diagnostic program type and version level v Configuration option settings v Operating system control file setup Chapter 5 Diagnostics 123 ...

Page 142: ...124 IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 143: ...w device drivers or to submit a request for information You can solve many problems without outside assistance by following the troubleshooting procedures that IBM provides in the online help or in the documentation that is provided with your IBM product The documentation that comes with IBM systems also describes the diagnostic tests that you can perform Most systems operating systems and program...

Page 144: ...rt Line in your country or region see http www ibm com services sl products For more information about Support Line and other IBM services see http www ibm com services or see http www ibm com planetwide for support telephone numbers In the U S and Canada call 1 800 IBM SERV 1 800 426 7378 Hardware service and support Important When you call for service you will be asked to provide the four digit ...

Page 145: ...OT LIMITED TO THE IMPLIED WARRANTIES OF NON INFRINGEMENT MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow disclaimer of express or implied warranties in certain transactions therefore this statement may not apply to you This information could include technical inaccuracies or typographical errors Changes are periodically made to the information herein these changes will...

Page 146: ...d other countries Other company product or service names may be trademarks or service marks of others Important notes Processor speeds indicate the internal clock speed of the microprocessor other factors also affect application performance CD ROM drive speeds list the variable read rate Actual speeds vary and are often less than the maximum possible When referring to processor storage real and vi...

Page 147: ...mation on IBM product recycling offerings can be found on IBM s Internet site at http www ibm com ibm environment products prp shtml Notice This mark applies only to countries within the European Union EU and Norway This appliance is labeled in accordance with European Directive 2002 96 EC concerning waste electrical and electronic equipment WEEE The Directive determines the framework for the retu...

Page 148: ...on on disposal of batteries outside the United States go to http www ibm com ibm environment products index shtml or contact your local waste disposal facility In the United States IBM has established a return process for reuse recycling or proper disposal of used IBM sealed lead acid nickel cadmium nickel metal hydride and battery packs from IBM equipment For information on proper disposal of the...

Page 149: ...ence of hazardous substances For proper collection and treatment contact your local IBM representative This notice is provided in accordance with Royal Decree 106 2008 of Spain The retail price of batteries accumulators and power cells includes the cost of the environmental management of their waste For California Perchlorate material special handling may apply See http www dtsc ca gov hazardouswa...

Page 150: ... required to take adequate measures United Kingdom telecommunications safety requirement Notice to Customers This apparatus is approved under approval number NS G 1234 J 100003 for indirect connection to public telecommunication systems in the United Kingdom European Union EMC Directive conformance statement This product is in conformity with the protection requirements of EU Council Directive 89 ...

Page 151: ...Taiwanese Class A warning statement Chinese Class A warning statement Japanese Voluntary Control Council for Interference VCCI statement Appendix B Notices 133 ...

Page 152: ...134 IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 153: ...ion notice 131 clearing configuration values 117 components list of 21 configuration Configuration Setup Utility 15 Ethernet controllers 16 restoring default values 117 ServerGuide Setup and Installation CD 15 Configuration Setup Utility program 15 configuring hardware 15 configuring your server 15 connector Ethernet 7 local area network LAN 7 operator information panel 5 6 power cord 7 serial 7 U...

Page 154: ... microprocessor 91 monitor 92 mouse USB 89 optional devices 94 pointing device USB 89 power 95 serial port 96 ServerGuide 96 software 97 USB device 97 Ethernet connector 7 controller configuring 16 troubleshooting 119 LAN activity LEDs 7 link LED 7 expansion slot specifications 3 F fan replacing 42 43 FCC Class A notice 131 features server 3 field replaceable units FRUs 21 firmware updating 15 BMC...

Page 155: ...EL 76 POST errors 76 system event error 76 M memory installing 41 problems 90 replacing 39 specifications 3 messages diagnostic 101 microprocessor coordination with DIMMs 40 installing 62 problems 91 replacing 61 requirements 40 specifications 3 monitor problems 92 mouse problems 90 N no beep symptoms 75 Nonmaskable interrupt NMI switch 7 notes defined 2 notices electronic emission 131 FCC Class A...

Page 156: ... 7 serial port problems 96 server replaceable units 21 ServerGuide Setup and Installation CD 15 service calling for 122 hardware 126 setting default configuration values 117 setting the power on password override jumper J52 117 size server 3 software problems 97 specifications 3 statements and notices defined 2 static sensitive devices handling 30 status LEDs Ethernet 7 server 6 switch light path ...

Page 157: ...using Configuration Setup Utility 15 Ethernet controllers 16 V video connector 7 controller specifications 3 video problems 92 VRD error LED 13 Index 139 ...

Page 158: ...140 IBM System x3455 Type 7940 and 7941 Problem Determination and Service Guide ...

Page 159: ......

Page 160: ... Part Number 49Y0088 Printed in USA 1P P N 49Y0088 ...

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