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IBM 8335-GTG Servicing

IBM 8335-GTG Servicing

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Power Systems
Servicing the 8335-GTC
IBM

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  • Page 1 Power Systems Servicing the 8335-GTC...
  • Page 2 Note Before using this information and the product it supports, read the information in “Safety notices” on page v, “Notices” on page 143, the IBM Systems Safety Notices manual, G229-9054, and the IBM Environmental Notices and User Guide, Z125–5823. ®...

  • Page 3: Table Of Contents

    Contents Safety notices........................v Removing and replacing parts in the 8335-GTC............1 BMC card..............................2 Removing the BMC card........................2 Replacing the BMC card........................4 Disk drive..............................6 Removing a disk drive..........................7 Replacing a disk drive..........................9 Disk drive and fan card..........................10 Removing the disk drive and fan card....................10 Replacing the disk drive and fan card....................15 Disk and fan signal cable.........................21 Removing the disk and fan signal cable....................
  • Page 4 Preparing the system for operation....................... 122 Starting and stopping the system......................124 Starting the system ......................... 124 Stopping the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system....... 125 Sensor status............................126 Removing and replacing covers......................126 Removing the service access cover....................126 Installing the service access cover....................

  • Page 5: Safety Notices

    Das Produkt ist nicht für den Einsatz an Bildschirmarbeitsplätzen im Sinne § 2 der Bildschirmarbeitsverordnung geeignet. Laser safety information IBM servers can use I/O cards or features that are fiber-optic based and that utilize lasers or LEDs. Laser compliance IBM servers may be installed inside or outside of an IT equipment rack.
  • Page 6 • When possible, use one hand only to connect or disconnect signal cables. • Never turn on any equipment when there is evidence of fire, water, or structural damage. • Do not attempt to switch on power to the machine until all possible unsafe conditions are corrected. •...
  • Page 7 – For racks with a DC power distribution panel (PDP), turn off the circuit breaker that controls the power to the system unit(s), or disconnect the customer’s DC power source, when directed to disconnect power during servicing. • Connect all devices installed in a rack cabinet to power devices installed in the same rack cabinet.
  • Page 8 – Ensure that there are little-to-no empty U-levels between devices installed in the rack cabinet below the 32U level, unless the received configuration specifically allowed it. • If the rack cabinet you are relocating is part of a suite of rack cabinets, detach the rack cabinet from the suite.
  • Page 9 • Before extending the rack to the installation position, read the installation instructions. • Do not put any load on the slide-rail mounted equipment mounted in the installation position. • Do not leave the slide-rail mounted equipment in the installation position. (L002) (L003) Safety notices ix...
  • Page 10 DANGER: Multiple power cords. The product might be equipped with multiple AC power cords or multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power cables. (L003) (L007) CAUTION: A hot surface nearby. (L007) (L008) CAUTION: Hazardous moving parts nearby.
  • Page 11 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.
  • Page 12 Freewheeling will cause uneven cable wrapping around winch drum, damage cable, and may cause serious injury. • This TOOL must be maintained correctly for IBM Service personnel to use it. IBM shall inspect condition and verify maintenance history before operation. Personnel reserve the right not to use TOOL if inadequate.
  • Page 13 Note: All Ethernet cables must be shielded and grounded at both ends. The ac-powered system does not require the use of an external surge protection device (SPD). The dc-powered system employs an isolated DC return (DC-I) design. The DC battery return terminal shall not be connected to the chassis or frame ground.
  • Page 14 xiv Power Systems: Servicing the 8335-GTC...

  • Page 15: Removing And Replacing Parts In The 8335-Gtc

    Electrical voltage and current from power, telephone, and communication cables are hazardous. To avoid a shock hazard: If IBM supplied the power cord(s), connect power to this unit only with the IBM provided power cord. Do not use the IBM provided power cord for any other product. Do not open or service any power supply assembly.

  • Page 16: Bmc Card

    Removing and replacing the BMC card in the 8335-GTC, 8335- GTG, 8335-GTH, 8335-GTW, or 8335-GTX ® Learn how to remove and replace the baseboard management card (BMC) in the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system.
  • Page 17 Attention: • Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack, or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging your hardware. • When you use an ESD wrist strap, follow all electrical safety procedures. An ESD wrist strap is used for static control.

  • Page 18: Replacing The Bmc Card

    4. Place the BMC card on an ESD mat. Replacing the BMC card in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system To replace a the baseboard management card (BMC), complete the steps in this procedure. Procedure 1. Ensure that you have the electrostatic discharge (ESD) wrist strap on and that the ESD clip is plugged into a ground jack or connected to an unpainted metal surface.
  • Page 19 Figure 3. Replacing the BMC card 5. Rotate the release latch (B) towards the rear of the system and snap the latch into the closed position to fully seat the card. 6. Replace the four screws (C) to secure the BMC card to the rear of the chassis. 7.

  • Page 20: What To Do Next

    Removing and replacing a disk drive in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system Learn how to remove and replace a disk drive in the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system.

  • Page 21: Removing A Disk Drive

    Removing a disk drive from the 8335-GTC, 8335-GTG, 8335-GTH, 8335- GTW, or 8335-GTX system To remove a disk drive, complete the steps in this procedure. Procedure 1. Remove the front cover. For instructions, see “Removing the front cover from an 8335-GTC, 8335- GTG, 8335-GTH, 8335-GTW, or 8335-GTX system”...
  • Page 22 You can also use the optional usysident package to turn on or turn off the amber LED. Run the following command to turn on the amber LED: usysident -d sdX -s identify Run the following command to turn off the amber LED: usysident -d sdX -s normal d) To prepare the drive for removal, disable it by running the following command, where sdX is the drive to replace.

  • Page 23: Replacing A Disk Drive

    6. If you are removing more than one drive, repeat the steps in this procedure until all drives are removed. Replacing a disk drive in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system To replace a disk drive, complete the steps in this procedure.

  • Page 24: Disk Drive And Fan Card

    5. Load or restore data from your backup media. Removing and replacing the disk drive and fan card in the 8335- Learn how to remove and replace the disk drive and fan card in the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) system.
  • Page 25 3. Label and remove the disk drive fan signal cable from the disk drive and fan card. For instructions, see “Removing the disk and fan signal cable from the 8335-GTC, 8335-GTG, 8335- GTH, 8335-GTW, or 8335-GTX system” on page 21.
  • Page 26 Figure 7. Removing the system processor air baffles 7. Remove the three screws (A) that secure the holder (B) to the system as shown in Figure 8 on page 13. Then, remove the holder from the system. 12 Power Systems: Servicing the 8335-GTC...
  • Page 27 Figure 8. Removing the front holder 8. Remove five screws (A) from the top of the disk drive and fan card. See Figure 9 on page 14 for the screw locations. Removing and replacing parts in the 8335-GTC 13...
  • Page 28 Figure 9. Screw locations for the disk drive and fan card a) Remove two screws (B) from the bottom of the disk drive and fan card. b) Remove one screw (C) from each side of the disk drive and fan card. 9.

  • Page 29: Replacing The Disk Drive And Fan Card

    Figure 10. Removing the disk drive and fan card 10. Place the disk drive and fan card on the table. Replacing the disk drive and fan card in the 8335-GTC To replace a disk drive and fan card, complete the steps in this procedure. Procedure 1.
  • Page 30 Figure 11. Inserting the disk drive and fan card 16 Power Systems: Servicing the 8335-GTC...
  • Page 31 Figure 12. Routing the cables under the disk drive and fan card 4. Replace two screws (B) for the bottom of the disk drive and fan card. Figure 13 on page 18 shows the screw locations. Removing and replacing parts in the 8335-GTC 17...
  • Page 32 Figure 13. Screw locations for the disk drive and fan card a) Replace five screws (A) at the top of the disk drive and fan card. b) Replace one screw (C) in each side of the disk drive and fan card. 5.
  • Page 33 Figure 14. Replacing the front holder 6. Replace the air baffles (A) and (B) as shown in Figure 15 on page 20. Removing and replacing parts in the 8335-GTC 19...

  • Page 34: What To Do Next

    8335-GTX system” on page 9. 8. Replace the fans. For instructions, see “Replacing a fan in the 8335-GTC, 8335-GTG, or 8335-GTH system” on page 9. Using your label, plug the disk drive fan signal cable into the disk drive and fan card.

  • Page 35: Disk And Fan Signal Cable

    Removing and replacing the disk and fan signal cable in the 8335- GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX Learn how to remove and replace a disk and fan signal cable in the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system.
  • Page 36 Figure 16. Location of the disk and fan signal cable and connectors 3. Release the cable from the retaining clip on the inside wall of the system. 4. Label and disconnect the disk and fan signal cable (A) from the disk drive and fan card (B) and from the system backplane (C).

  • Page 37: Replacing The Disk And Fan Signal Cable

    Figure 17. Removing the disk and fan signal cable 5. Place the cable on the table. Replacing the disk and fan signal cable in the 8335-GTC, 8335-GTG, 8335- GTH, 8335-GTW, or 8335-GTX system To replace a disk and fan signal cable, complete the steps in this procedure.

  • Page 38: About This Task

    Removing and replacing fans in the 8335-GTC, 8335-GTG, or 8335- GTH system Learn how to remove and replace the fans in the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) system. Removing a fan from the 8335-GTC, 8335-GTG, or 8335-GTH system To remove a fan, complete the steps in this procedure.
  • Page 39 Procedure 1. Attach the electrostatic discharge (ESD) wrist strap. The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is completed, and if applicable, until the service access cover is replaced. Attention: • Attach an electrostatic discharge (ESD) wrist strap to the front ESD jack, to the rear ESD jack, or to an unpainted metal surface of your hardware to prevent the electrostatic discharge from damaging your hardware.

  • Page 40: Replacing A Fan

    Removing and replacing the fan power cable in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system Learn how to remove and replace the fan power cable in the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system.

  • Page 41: Removing The Fan Power Cable

    To remove a fan power cable, complete the steps in this procedure. Before you begin Power off the system and place it in the service position. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system to remove and replace internal parts” on page 118. Procedure 1.
  • Page 42 Figure 21. Location of the fan power cable and connectors 3. Grasp the connector end of the fan power cable that is connected to the power riser. See (A) in Figure 22 on page 30. 4. While you press the latch release lever with your thumb, disconnect the cable from the connector. 28 Power Systems: Servicing the 8335-GTC...
  • Page 43 Note: The latch release on the connector must be pressed before you unplug the cable. Failure to do so might damage the cable and the connector. 5. Disconnect the fan power cable connector end from the disk drive and fan card. 6.

  • Page 44: Replacing The Fan Power Cable

    Figure 22. Removing the fan power cable from the system Replacing the fan power cable in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system To replace a fan power cable, complete the steps in this procedure. Procedure 1. Ensure that you have the electrostatic discharge (ESD) wrist strap on and that the ESD clip is plugged into a ground jack or connected to an unpainted metal surface.

  • Page 45: Graphics Processing Unit

    Removing and replacing a graphics processing unit in the 8335- GTC, 8335-GTG, or 8335-GTH system Learn how to remove and replace a graphics processing unit (GPU) in the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) system. Removing the graphics processing unit from an air-cooled 8335-GTC, 8335- GTG, or 8335-GTH system To remove a graphics processing unit from an air-cooled system, complete the steps in this procedure.
  • Page 46 About this task Attention: For safety and airflow purposes, if you remove parts from the system, you must ensure that: • PCIe tailstock fillers are present. • Graphic processor unit (GPU) airflow baffles are present. Procedure 1. Attach the electrostatic discharge (ESD) wrist strap. The ESD wrist strap must be connected to an unpainted metal surface until the service procedure is completed, and if applicable, until the service access cover is replaced.

  • Page 47: Replacing The Graphics Processing Unit In An Air-Cooled System

    Figure 24. Remove eight GPU screws per GPU; do not loosen the four spring-loaded screws 4. Grasp the GPU by the heat sink, being careful not to bend the pins. Remove the GPU from the system backplane. Be careful of the pins on the bottom of the GPUs to avoid damaging the pins and the GPU. Replacing the graphics processing unit in an air-cooled 8335-GTC, 8335- GTG, or 8335-GTH system To replace a graphics processing unit an air-cooled system, complete the steps in this procedure.

  • Page 48: Memory Modules

    8335-GTW, or 8335-GTX system for operation after you remove and replace internal parts” on page 122. Removing and replacing memory modules in the 8335-GTC, 8335- GTG, or 8335-GTH system Learn how to remove and replace memory modules in the IBM Power System AC922 (8335-GTC, 8335- GTG, and 8335-GTH) system. 34 Power Systems: Servicing the 8335-GTC...

  • Page 49: Removing And Replacing Memory Modules

    To remove and replace memory modules, complete the steps in this procedure. Before you begin Power off the system and place it in the service position. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system to remove and replace internal parts” on page 118. Procedure 1.
  • Page 50 Figure 26. Removing the system processor air baffles 3. Locate the memory module to remove. Figure 27 on page 37 shows the location of the memory modules. 36 Power Systems: Servicing the 8335-GTC...
  • Page 51 Figure 27. Location of the memory modules 4. Remove the memory module from the slot. a) Unlock the memory module by pushing the locking tabs away from the memory module, in the direction shown in Figure 28 on page 38. The lever action of opening the tabs pushes the memory module out of the slot.
  • Page 52 Figure 28. Removing a memory module b) Hold the memory module by the edges and pull it out of the slot. 5. Place the memory module on an ESD mat. Replacing memory modules: 6. To replace a memory module, complete the following steps: a) Push the locking tabs to the open position, away from the slot, in the direction shown in Figure 29 on page 39.
  • Page 53 Figure 29. Replacing a memory module b) Grasp the memory module along its edges and align it with the slot. Attention: The memory module is keyed to prevent it from being installed incorrectly. Note the location of the key tab within the memory connector before you attempt to install it. c) Press firmly on each side of the memory module until the locking tab locks in place with an audible click.

  • Page 54: Memory Plugging Rules

    Figure 30. Replacing the system processor air baffles What to do next Prepare the system for operation. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system for operation after you remove and replace internal parts” on page 122.

  • Page 55: Pcie Adapters

    GTG, 8335-GTH, 8335-GTW, or 8335-GTX system Learn about removing and replacing Peripheral Component Interconnect (PCI) Express (PCIe) adapters in the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system. About this task...

  • Page 56: Replacing A Pcie Adapter

    3. Remove the PCIe adapter from the system backplane by lifting the adapter. Figure 31. Removing a PCIe adapter 4. Place the PCIe adapter on an ESD mat. Replacing a PCIe adapter in the 8335-GTC, 8335-GTG, 8335-GTH, 8335- GTW, or 8335-GTX system To replace PCIe adapters, complete the steps in this procedure.

  • Page 57: Power Supplies

    Removing and replacing a power supply in the 8335-GTC, 8335- GTG, 8335-GTH, 8335-GTW, or 8335-GTX system Find information about removing and replacing power supplies in the IBM Power System AC922 (8335- GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system.

  • Page 58: Removing A Power Supply

    5 seconds before you continue with the service process. 2. Disconnect the power source from the system by unplugging the system. For instructions, see “Disconnecting power cords from an 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system” on page 134.
  • Page 59 DANGER: Multiple power cords. The product might be equipped with multiple AC power cords or multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power cables. (L003) (L005) Removing and replacing parts in the 8335-GTC 45...
  • Page 60 CAUTION: Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with metal, which might result in splattered metal, burns, or both. (L005) 3. Remove the power supplies from the system as shown in Figure 33 on page 46. a) To release a power supply from its position in the system, pull the locking-tab (A) to the left.

  • Page 61: Replacing A Power Supply

    Figure 34. Replacing the power supplies in the system 3. Reconnect the power cords to the power supplies. For instructions, see “Connecting power cords to an 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system” on page 137. Removing and replacing the power switch and cable in the 8335- Learn how to remove and replace the power switch and cable in the system.

  • Page 62: Removing The Power Switch And Cable

    To remove a power switch and cable, complete the steps in this procedure. Before you begin Power off the system and place it in the service position. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system to remove and replace internal parts” on page 118. Procedure 1.
  • Page 63 Figure 35. Removing the power switch and cable from the system backplane 4. Remove the rack installation support from the side of the system as shown in Figure 36 on page 50. Removing and replacing parts in the 8335-GTC 49...
  • Page 64 Figure 36. Removing the rack installation support 5. Remove the top and side screws from the power switch as shown in Figure 37 on page 51. 50 Power Systems: Servicing the 8335-GTC...
  • Page 65 Figure 37. Remove the top and side screws 6. Pull the power switch from the system as shown in Figure 38 on page 52. Removing and replacing parts in the 8335-GTC 51...

  • Page 66: Replacing The Power Switch And Cable

    Figure 38. Pull out the power switch and cable 7. Place the power switch and cable on the table. Replacing the power switch and cable in the 8335-GTC system To replace a power switch and cable, complete the steps in this procedure. Procedure 1.
  • Page 67 Figure 39. Replacing the power switch and cable into the system backplane 4. Replace the top and side screws for the power switch as shown in Figure 40 on page 54. Removing and replacing parts in the 8335-GTC 53...
  • Page 68 Figure 40. Replace the top and side screws 5. Using the labels, plug the power switch and cable (A) to the system backplane as shown in Figure 41 on page 55. Ensure that the cable latch clip snaps into place on the connectors. 54 Power Systems: Servicing the 8335-GTC...
  • Page 69 Figure 41. Plugging in the power switch and cable 6. Replace the rack installation support on the side of the system as shown in Figure 42 on page 56. Removing and replacing parts in the 8335-GTC 55...

  • Page 70: What To Do Next

    For instructions, see “Replacing the disk drive and fan card in the 8335-GTC” on page 15. What to do next Prepare the system for operation. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system for operation after you remove and replace internal parts” on page 122.

  • Page 71: Removing The System Backplane

    Procedure Power off the system and place it in the service position. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system to remove and replace internal parts” on page 118. Removing the system backplane from the 8335-GTC To remove a system backplane, complete the steps in this procedure.
  • Page 72 GTW, or 8335-GTX system” on page 41. 5. Label and remove the disk and fan signal cable from the system backplane. For instructions, see “Removing the disk and fan signal cable from the 8335-GTC, 8335-GTG, 8335- GTH, 8335-GTW, or 8335-GTX system” on page 21.
  • Page 73 Figure 44. Remove the middle support side screws 9. Unscrew and remove 22 screws at locations (A), (B), and (C) from the system backplane and supports. The screw locations are shown in Figure 45 on page 60. The screws at (A) are the shortest. The screws at (B) and (C) are longer and secure the pipe supports.
  • Page 74 Figure 45. System backplane screw locations 10. Using the two blue handles (A), lift the system backplane (B) straight up to remove it. See Figure 46 on page 61. 60 Power Systems: Servicing the 8335-GTC...

  • Page 75: Replacing The System Backplane

    Figure 46. Lifting out the system backplane 11. Place the system backplane on the ESD mat. Replacing the system backplane in the 8335-GTC To replace a system backplane, complete the steps in this procedure. Procedure 1. Ensure that you have the electrostatic discharge (ESD) wrist strap on and that the ESD clip is plugged into a ground jack or connected to an unpainted metal surface.
  • Page 76 Figure 47. Lowering the system backplane into the system 4. Replace the three metal pipe supports at (B) (two smaller supports) and (C) (one longer support). Align and tighten the 22 screws into the system backplane at (A) and into the pipe supports at (B) and (C).
  • Page 77 Figure 48. System backplane screw locations 5. Ensure that the jumper that is shown in Figure 49 on page 64 is set to the air-cooled position. Removing and replacing parts in the 8335-GTC 63...
  • Page 78 Figure 49. Jumper in air-cooled position 6. Replace one screw (B) on each side of the middle support (A). See Figure 50 on page 65. 64 Power Systems: Servicing the 8335-GTC...
  • Page 79 Figure 50. Replacing the middle support screws 7. Begin the process of transferring the system processors, one at a time. 8. Remove the heat sink from the system processor module: a. Loosen the heat sink actuation screw by turning the supplied hex key counterclockwise (A). Loosen the screw until it moves freely.
  • Page 80 Figure 51. Removing the heat sink 9. Using tweezers, carefully remove the TIM from the top of the system processor module and place it in a clean, dry area as shown in Figure 52 on page 67. The TIM can tear easily. 66 Power Systems: Servicing the 8335-GTC...
  • Page 81 Figure 52. Removing the TIM from the system processor module 10. Remove dust and debris from the system processor module area. If dust or debris is present, use the supplied air pump to clean the system processor module area. Blow small bursts of air from the center toward the sides of the system processor module as shown in Figure 53 on page 68.
  • Page 82 Figure 53. Removing dust and debris from the system processor module area 11. On the new system backplane, remove the socket cover from a system processor socket. 12. Prepare the system processor module for removal. a) Open the latches that hold the system processor module in the supplied removal tool (A). Push down on the ring (B) while pressing in on the tabs (C).
  • Page 83 Figure 54. Opening the processor removal tool latches b) Lower the tool over the system processor module while ensuring that the two guide pins (A) insert into the alignment holes (B) on each side of the tool. See Figure 55 on page 70. Removing and replacing parts in the 8335-GTC 69...
  • Page 84 Figure 55. Lowering the removal tool onto the system processor module c) With the removal tool sitting on top of the system processor module, push down on the ring (A) to close the latches (C) and lock the system processor module into the tool. Make sure that both of the tool jaws are locked on the system processor module.
  • Page 85 Figure 56. Locking the system processor module into the tool 13. Holding the outside of the tool, lift the tool and system processor module from the old system backplane socket to transfer it to the new system backplane socket. 14. Install the system processor module: a) If dust or debris is present on the system processor socket, use the supplied air pump to clean the socket.
  • Page 86 Figure 57. Removing dust and debris from the system processor socket b) Lower the tool and system processor module onto the socket. Align the guide pins (A) with the alignment holes (B) on each side of the tool. Use care to lower the tool evenly without tilting the tool.
  • Page 87 Figure 58. Installing the system processor module c) Open the latches that hold the system processor module in the supplied removal tool (A). Push down on the ring (B) while pressing in on the tabs (C). See Figure 59 on page 74. Removing and replacing parts in the 8335-GTC 73...
  • Page 88 Figure 59. Removing the system processor module tool d) Lift the tool off the system processor module. 15. Inspect the thermal interface material (TIM) for visible signs of damage, as shown in Figure 60 on page 75. If you see folds, tears, bends, or if you have doubts about the TIM, replace it. 74 Power Systems: Servicing the 8335-GTC...
  • Page 89 Figure 60. Inspecting the thermal interface material 16. Choose one of the following repair options: Option Description Is the TIM damaged? It is damaged. Proceed to step “17” on page 75 to replace the gray- colored TIM and install the existing heat sink. Is the TIM not It is not damaged and can be reused.
  • Page 90 Figure 61. Installing a new TIM onto the system processor module d) Place the heat sink on the TIM as shown in Figure 62 on page 77. 76 Power Systems: Servicing the 8335-GTC...
  • Page 91 Figure 62. Installing the heat sink on the gray-colored TIM Continue with step “19” on page 79. 18. Use this step to reuse the existing undamaged TIM and heat sink. a) Using the tweezers, move the old TIM from the clean, dry surface and center it onto the new system processor module.
  • Page 92 Figure 63. Replacing the TIM onto the system processor module b) Place the heat sink on the TIM as shown in Figure 64 on page 79. 78 Power Systems: Servicing the 8335-GTC...
  • Page 93 Figure 64. Installing the heat sink on the TIM Continue with step “19” on page 79. 19. Secure the TIM and heat sink to the system processor socket. a) Ensure that the heat sink load arms are engaged as shown by (A) in Figure 65 on page 80. b) Tighten the center load screw clockwise by using the supplied hex key as shown by (B) in Figure 65 on page 80 until a firm stop is reached.
  • Page 94 23. Using your labels, replace the disk and fan signal cable into that connector in the system backplane. For instructions, see “Replacing the disk and fan signal cable in the 8335-GTC, 8335-GTG, 8335- GTH, 8335-GTW, or 8335-GTX system” on page 23.

  • Page 95: Preparing The System For Operation After Replacing The System Backplane

    The GPU must not be separated from its heatsink. For instructions, see “Replacing the graphics processing unit in an air-cooled 8335-GTC, 8335-GTG, or 8335-GTH system” on page 33. 29. Replace the air baffles (A) and (B) as shown in Figure 66 on page 81.

  • Page 96: Before You Begin

    See: i) “Stopping the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system” on page 125 ii) “Starting the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system ” on page 124 Removing and replacing a system processor module in the 8335- GTC, 8335-GTG, or 8335-GTH system Learn how to remove and replace a system processor module or how to upgrade all of the system processor modules in the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) system.

  • Page 97: About This Task

    About this task As part of the system processor module replacement, the heat sink is removed. If the heat sink or if the thermal interface material (TIM) is damaged, it must be replaced. Ensure that you have spare heatsinks and TIMs available before proceeding. Procedure 1.
  • Page 98 3. Remove the air baffles (A) and (B) as shown in Figure 68 on page 84. Figure 68. Removing the system processor air baffles 4. Remove the heat sink from the system processor module: a. Loosen the heat sink actuation screw by turning the supplied hex key counterclockwise (A). Loosen the screw until it moves freely.
  • Page 99 Figure 69. Removing the heat sink 5. Using tweezers, carefully remove the TIM from the top of the system processor module and place it in a clean, dry area as shown in Figure 70 on page 86. The TIM can tear easily. Removing and replacing parts in the 8335-GTC 85...
  • Page 100 Figure 70. Removing the TIM from the system processor module 6. Remove dust and debris from the system processor module area. If dust or debris is present, use the supplied air pump to clean the system processor module area. Blow small bursts of air from the center toward the sides of the system processor module as shown in Figure 71 on page 87.
  • Page 101 Figure 71. Removing dust and debris from the system processor module area 7. Prepare the system processor module for removal. a) Open the latches that hold the system processor module in the supplied removal tool (A). Push down on the ring (B) while pressing in on the tabs (C). See Figure 72 on page 88.
  • Page 102 Figure 72. Opening the processor removal tool latches b) Lower the tool over the system processor module while ensuring that the two guide pins (A) insert into the alignment holes (B) on each side of the tool. See Figure 73 on page 89. 88 Power Systems: Servicing the 8335-GTC...
  • Page 103 Figure 73. Lowering the removal tool onto the system processor module c) With the removal tool sitting on top of the system processor module, push down on the ring (A) to close the latches (C) and lock the system processor module into the tool. Make sure that both of the tool jaws are locked on the system processor module.
  • Page 104 Figure 74. Locking the system processor module into the tool 8. Holding the outside of the tool, lift the tool and system processor module from the socket. Place them at an angle in the top cover of the system processor module packaging, as shown in Figure 75 on page 91.
  • Page 105 Figure 75. Placing the tool at an angle on the top cover of the packaging 9. Open the latches that hold the system processor module in the supplied removal tool (A). Push down on the ring (B) while pressing in on the tabs (C). See Figure 76 on page 92.

  • Page 106: Replacing The System Processor Module

    Figure 76. Releasing the system processor module from the tool Replacing a system processor module in the 8335-GTC, 8335-GTG, or 8335- GTH system To replace a system processor module, complete the steps in this procedure. Procedure 1. Ensure that you have the electrostatic discharge (ESD) wrist strap on and that the ESD clip is plugged into a ground jack or connected to an unpainted metal surface.
  • Page 107 Figure 77. Opening the processor removal tool latches b) Lower the tool over the system processor module while ensuring that the two guide pins (A) insert into the alignment holes (B) on each side of the tool. See Figure 78 on page 94. Removing and replacing parts in the 8335-GTC 93...
  • Page 108 Figure 78. Lowering the removal tool onto the system processor module c) With the removal tool sitting on top of the system processor module, push down on the ring (A) to close the latches (C) and lock the system processor module into the tool. Make sure that both of the tool jaws are locked on the system processor module.
  • Page 109 Figure 79. Locking the system processor module into the tool 4. Hold the sides of the tool with system processor module and carefully lift the tool out of the system processor module tray. 5. Install the system processor module: a) If dust or debris is present on the system processor socket, use the supplied air pump to clean the socket.
  • Page 110 Figure 80. Removing dust and debris from the system processor socket b) Lower the tool and system processor module onto the socket. Align the guide pins (A) with the alignment holes (B) on each side of the tool. Use care to lower the tool evenly without tilting the tool.
  • Page 111 Figure 81. Installing the system processor module c) Open the latches that hold the system processor module in the supplied removal tool (A). Push down on the ring (B) while pressing in on the tabs (C). See Figure 82 on page 98. Removing and replacing parts in the 8335-GTC 97...
  • Page 112 Figure 82. Removing the system processor module tool d) Lift the tool off the system processor module. 6. Inspect the thermal interface material (TIM) for visible signs of damage, as shown in Figure 83 on page 99. If you see folds, tears, bends, or if you have doubts about the TIM, replace it. 98 Power Systems: Servicing the 8335-GTC...
  • Page 113 Figure 83. Inspecting the thermal interface material 7. Choose one of the following repair options: Option Description Is the TIM damaged? It is damaged. Proceed to step “8” on page 99 to replace the TIM and install the existing heat sink. Is the TIM OK? It is not damaged and can be reused.
  • Page 114 Figure 84. Installing a new TIM onto the system processor module d) Place the heat sink on the TIM as shown in Figure 85 on page 101. 100 Power Systems: Servicing the 8335-GTC...
  • Page 115 Figure 85. Installing the heat sink on the gray-colored TIM Continue with step “10” on page 103. 9. Use this step to reuse the existing undamaged TIM and heat sink. a) Using the tweezers, move the old TIM from the clean, dry surface and center it onto the new system processor module.
  • Page 116 Figure 86. Replacing the TIM onto the system processor module b) Place the heat sink on the TIM as shown in Figure 87 on page 103. 102 Power Systems: Servicing the 8335-GTC...
  • Page 117 Figure 87. Installing the heat sink on the TIM 10. Secure the TIM and heat sink to the system processor socket. a) Ensure that the heat sink load arms are engaged as shown by (A) in Figure 88 on page 104. b) Tighten the center load screw clockwise by using the supplied hex key as shown by (B) in Figure 88 on page 104 until a firm stop is reached.
  • Page 118 Figure 88. Tightening the center load screw on the heat sink 11. Replace the air baffles (A) and (B) as shown in Figure 89 on page 105. 104 Power Systems: Servicing the 8335-GTC...
  • Page 119 Figure 89. Replacing the system processor air baffles 12. Lightly grip the system processor module that you replaced by the edges and lift it off the packaging cover. Align the beveled corner of the module (A) to the corner of the packaging with triangle (B) and place it in the packaging, as shown in Figure 90 on page 106.

  • Page 120: What To Do Next

    Figure 90. Placing the system processor module into the packaging What to do next Prepare the system for operation. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system for operation after you remove and replace internal parts” on page 122.

  • Page 121: Time-Of-Day Battery

    For instructions, see Getting fixes. 3. Remove all the system processor modules. For instructions, see “Removing a system processor module from the 8335-GTC, 8335-GTG, or 8335- GTH system” on page 82. 4. Replace all the system processor modules. For instructions, see “Replacing a system processor module in the 8335-GTC, 8335-GTG, or 8335- GTH system”...
  • Page 122 Figure 91. Removing the time-of-day battery from the system backplane Replacing: 3. Insert the time-of-day battery in the slot on the system backplane as shown in Figure 92 on page 109. Ensure to insert the battery with the correct polarity as recorded during removing of the battery. 108 Power Systems: Servicing the 8335-GTC...
  • Page 123 Figure 92. Replacing the time-of-day battery on the system backplane What to do next Prepare the system for operation. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system for operation after you remove and replace internal parts” on page 122.
  • Page 124 110 Power Systems: Servicing the 8335-GTC...

  • Page 125: Common Procedures For Servicing Or Installing Features

    Electrical voltage and current from power, telephone, and communication cables are hazardous. To avoid a shock hazard: If IBM supplied the power cord(s), connect power to this unit only with the IBM provided power cord. Do not use the IBM provided power cord for any other product. Do not open or service any power supply assembly.
  • Page 126 To Connect: 1) Turn off everything (unless instructed otherwise). 2) Attach all cables to the devices. 3) Attach the signal cables to the connectors. 4) For AC power, attach the power cords to the outlets. 5) For racks with a DC power distribution panel (PDP), restore the power from the Customer's DC power source and turn on the circuit breakers located in the PDP.
  • Page 127 (R001 part 2 of 2) (L003) Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 113...
  • Page 128 DANGER: Multiple power cords. The product might be equipped with multiple AC power cords or multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power cables. (L003) (L005) CAUTION: Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with metal, which might result in splattered metal, burns, or both.

  • Page 129: Identifying The System That Contains The Part To Replace

    LEDs on the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system Use this information as a guide to the LEDs on the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system. The LEDs indicate various system statuses. These LEDs are at the front (as shown in Figure 93 on page 116 and Figure 94 on page 116) and at the rear of the system (as shown in Figure 95 on page 117).
  • Page 130 Figure 93. Front LEDs with bezel on Figure 94. Front LEDs with bezel off 116 Power Systems: Servicing the 8335-GTC...

  • Page 131: Identifying The System

    To check the status of the blue system identify LED, use the following command: openbmctool -U <username> -P <password> -H <BMC IP address or BMC host name> chassis identify status Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 117...

  • Page 132: Preparing The System To Remove And Replace Internal Parts

    Preparing the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system to remove and replace internal parts To prepare the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system to remove and replace internal parts, complete the steps in this procedure.
  • Page 133 Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 119...
  • Page 134 DANGER: Multiple power cords. The product might be equipped with multiple AC power cords or multiple DC power cables. To remove all hazardous voltages, disconnect all power cords and power cables. (L003) (L005) CAUTION: Hazardous energy present. Voltages with hazardous energy might cause heating when shorted with metal, which might result in splattered metal, burns, or both.
  • Page 135 Figure 96. Removing the power supplies from the system 10. Place the system into the service position. For instructions, see “Placing an 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system into the service position” on page 129. CAUTION: Do not place any object on top of a rack-mounted device unless that rack- mounted device is intended for use as a shelf.

  • Page 136: Preparing The System For Operation

    8335-GTX system for operation after you remove and replace internal parts To prepare the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system for operation after you remove and replace internal parts, complete the steps in this procedure.
  • Page 137 8335-GTX system” on page 137. 6. If applicable, close the rack door at the rear of the system. 7. Start the system. For instructions, see “Starting the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system ” on page 124. 8. If the BMC card was replaced continue to the next step, otherwise go to step “12” on page 124.

  • Page 138: Starting And Stopping The System

    Starting and stopping the 8335-GTC, 8335-GTG, 8335-GTH, 8335- GTW, or 8335-GTX system Learn how to start and stop the IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system to perform a service action or system upgrade operation.

  • Page 139: Stopping The 8335-Gtc, 8335-Gtg, 8335-Gth, 8335-Gtw, Or 8335-Gtx System

    • You can press and hold the power button to stop and power off the system. Figure 99. Power button ® • You can use the Linux shutdown command to stop and power off the system. Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 125...

  • Page 140: Sensor Status

    Removing and replacing covers on an 8335-GTC, 8335-GTG, 8335- GTH, 8335-GTW, or 8335-GTX system Learn how to remove and replace the covers for an IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system so that you can access the hardware parts or service the system.

  • Page 141: Installing The Service Access Cover

    Slide the cover to the front of the system until the blue release latch (B) locks in to place as shown in Figure 101 on page 128. Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 127...

  • Page 142: Removing The

    2. Fasten the cover screw (C) at the rear of the cover. Figure 101. Installing the cover Removing the front cover from an 8335-GTC, 8335-GTG, 8335-GTH, 8335- GTW, or 8335-GTX system To remove the front cover, complete the steps in this procedure.

  • Page 143: Installing The

    Service and operating positions for the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system Learn how to place on an IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system into the service or operating position.

  • Page 144: Before You Begin

    Figure 102. Placing the system into the service position 3. Pull the system unit out of the rack. Fixed rails Use this procedure when your system is installed using fixed rails. Before you begin CAUTION: This system requires two people to remove the system from the rack. Do not begin this procedure unless physical assistance is available to remove the system from the rack.

  • Page 145: Placing The System Into The Operating Position

    About this task Pick the proper type of rails for your system: • “Slide rails” on page 132 • “Fixed rails” on page 133 Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 131...
  • Page 146 Slide rails Use this procedure when your system is installed using slide rails. Before you begin When you place the system in the operating position, ensure that the cables at the rear of the system do not catch or bind as you push the system unit back into the rack. Procedure 1.
  • Page 147 Ensure that you plug the male hose into the female manifold plug, and plug the female hose into the male manifold plug. Attention: Before powering on the system, ensure that cooling water is circulating through the system. Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 133...

  • Page 148: Removing And Replacing Power Cords

    Removing and replacing power cords in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system Find information about removing and replacing power cords in an IBM Power System AC922 (8335-GTC, 8335-GTG, and 8335-GTH) or IBM Power System AC922 (8335-GTW and 8335-GTX) system.
  • Page 149 Figure 106 on page 135 and Figure 107 on page 136 shows how to loop the cables. Figure 106. Routing the power cord loop in the cable management arm Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 135...
  • Page 150 Figure 107. Power cord loop with sidewall routing 4. Disconnect the power cords from the system unit as shown in Figure 108 on page 137. Note: This system might be equipped with two or more power supplies. If the removing and replacing procedures require the power to be off, then ensure that all the power sources to the system are disconnected.

  • Page 151: Connecting Power Cords

    2. Using your labels, reconnect the power cords to the system unit as shown in Figure 109 on page 137. Figure 109. Connecting the power cords to the system 3. Loop and attach the power cords to the power supply handle. Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 137...
  • Page 152 Note how the power is looped; be sure to maintain at least a 5 cm (2 in.) diameter loop. Use the hook-and-loop fastener to tie the power cord to the power supply handle. Figure 110 on page 138 and Figure 111 on page 139 shows how to loop the cables. Figure 110.

  • Page 153: Updating The System Firmware Level Of A Bmc Card To Op940.20, Or Later, In An 8335-Gth Or 8335-Gtx System

    Updating the system firmware by using the OpenBMC tool. If you are not able to update the system firmware level, continue with the next step. Continue with the next step. Common procedures for servicing or installing features in the 8335-GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system 139...
  • Page 154 2. Power off the system and place it in the service position. For instructions, see “Preparing the 8335- GTC, 8335-GTG, 8335-GTH, 8335-GTW, or 8335-GTX system to remove and replace internal parts” on page 118. 3. Attach the electrostatic discharge (ESD) wrist strap.
  • Page 155 Figure 112. System processor jumper positions 6. Install the air baffles. 7. Prepare the system for operation. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335- GTH, 8335-GTW, or 8335-GTX system for operation after you remove and replace internal parts” on page 122.
  • Page 156 Figure 113. System processor jumper positions 13. Install the air baffles. 14. Prepare the system for operation. For instructions, see “Preparing the 8335-GTC, 8335-GTG, 8335- GTH, 8335-GTW, or 8335-GTX system for operation after you remove and replace internal parts” on page 122.

  • Page 157: Notices

    Consult your local IBM representative for information on the products and services currently available in your area. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used. Any functionally equivalent product, program, or service that does not infringe any IBM intellectual property right may be used instead.

  • Page 158: Accessibility Features For Ibm Power Systems Servers

    This product uses standard navigation keys. Interface information The IBM Power Systems servers user interfaces do not have content that flashes 2 - 55 times per second. The IBM Power Systems servers web user interface relies on cascading style sheets to render content properly and to provide a usable experience.

  • Page 159: Vendor Software

    Contact the vendor for accessibility information about its products. Related accessibility information In addition to standard IBM help desk and support websites, IBM has a TTY telephone service for use by deaf or hard of hearing customers to access sales and support services:...

  • Page 160: Electronic Emission Notices

    Electronic emission notices Class A Notices The following Class A statements apply to the IBM servers that contain the POWER9 processor and its features unless designated as electromagnetic compatibility (EMC) Class B in the feature information. When attaching a monitor to the equipment, you must use the designated monitor cable and any interference suppression devices supplied with the monitor.
  • Page 161 Tel: 914-499-1900 Der verantwortliche Ansprechpartner des Herstellers in der EU ist: IBM Deutschland GmbH Technical Relations Europe, Abteilung M456 IBM-Allee 1, 71139 Ehningen, Germany Tel: +49 (0) 800 225 5426 email: HalloIBM@de.ibm.com Generelle Informationen: Das Gerät erfüllt die Schutzanforderungen nach EN 55024 und EN 55022 / EN 55032 Klasse A.

  • Page 162: Korea Notice

    Properly shielded and grounded cables and connectors must be used in order to meet FCC emission limits. Proper cables and connectors are available from IBM-authorized dealers. IBM is not responsible for any radio or television interference caused by using other than recommended cables and connectors...

  • Page 163: Class B Notices

    Um dieses sicherzustellen, sind die Geräte wie in den Handbüchern beschrieben zu installieren und zu betreiben. Des Weiteren dürfen auch nur von der IBM empfohlene Kabel angeschlossen werden. IBM übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen, wenn das Produkt ohne Zustimmung von IBM verändert bzw.
  • Page 164 Tel: 914-499-1900 Der verantwortliche Ansprechpartner des Herstellers in der EU ist: IBM Deutschland GmbH Technical Relations Europe, Abteilung M456 IBM-Allee 1, 71139 Ehningen, Germany Tel: +49 (0) 800 225 5426 email: HalloIBM@de.ibm.com Generelle Informationen: Das Gerät erfüllt die Schutzanforderungen nach EN 55024 und EN 55032 Klasse B...

  • Page 165: Terms And Conditions

    Contact for FCC compliance information only: fccinfo@us.ibm.com Terms and conditions Permissions for the use of these publications are granted subject to the following terms and conditions. Applicability: These terms and conditions are in addition to any terms of use for the IBM website. Notices 151...
  • Page 166 IBM reserves the right to withdraw the permissions granted herein whenever, in its discretion, the use of the publications is detrimental to its interest or, as determined by IBM, the above instructions are not being properly followed.
  • Page 168 IBM®...

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