System backplane

Use this procedure to replace the system backplane.

1. Access the ASMI

   The Advanced System Management Interface (ASMI) is the interface to the service processor that is required to perform general and administrator-level service tasks, such as reading service processor error logs, reading vital product data, setting up the service processor, and controlling the system power. The ASMI may also be referred to as the service processor menus. To access the ASMI, refer to Accessing the Advanced System Management Interface. When you have accessed the ASMI, continue with the next step.

2. Check and record the server settings

   Prior to replacing this FRU, check and record all server settings as you may need to update the system after you update this FRU. This can be done through the Advanced System Management Interface (ASMI) . Check and record the server firmware level indicated on the right edge of the status frame, the area where the Log out button is located. You may need to update the system to the latest server firmware code level after you update this FRU. Check and record the service processor settings you previously set using ASMI. You will need to reset these service processor settings after you update this FRU or the default settings will be used. Settings to record include the following: Power/Restart Control settings. System Service Aids settings. System Configuration settings, System Name setting. Network Services settings. Performance Setup settings. Login Profile settings. Location code (with system powered off) System configuration Vital product data Program vital product data System enclosures Location code For example, DQxxxxx. Record any service processor settings you may have set using operating system commands. Note: If you are unable to manually record the server settings, contact the next level of support

3. Shut down the partitions and power off the system

   This FRU cannot be serviced concurrently. Every partition must be shut down and the system powered off to continue the repair. Authorization must come from the customer to shut down all running partitions and power off the system. If the customer will not allow the partitions to be shut down or the system to be powered off, delay the service procedure. If the customer is using a secondary HMC to manage the system, make sure they are not powering on the system at this time.

4. Disconnect the power cords

   Open the back rack door on the unit you are servicing. Identify the system unit you are servicing in the rack. Disconnect all power cords from the unit you are servicing.

5. Remove the front cover

   Note to Tower Users: The instructions in this procedure are written based on the Rack model. Tower users may still use this procedure. However, Tower users should ignore specific references to rack-only features such as rack doors, rack thumbscrews, and rack-specific FRU orientation, etc. Open the front rack door. Remove the two screws (A) (if present) that secure the system unit (B) to the rack. Grab the cover at points (C) and pull it out and away from the system unit.

6. Remove the power supply or both power supplies

   Disconnect the power cable (A) from the first power supply you are removing, either E1 or E2. While pushing the lever (B) down, pull the power supply straight out of the system. Repeat these steps to remove the other power supply, if present.

7. Disconnect all the external cables

   Carefully label the external cables connected to the FRU you are servicing so that they can be reconnected in exactly the same place after the repair. This can include cables on the following ports: Serial SPCN GX Ethernet PCI USB Then disconnect the external cables.

8. Place into service position

   Notes: When placing the system into the service position, it is essential that all stability plates are firmly in position to prevent the rack from toppling. Ensure that only one system unit is in the service position at a time. Ensure that the cables at the back of the system unit do not catch or bind as you pull the unit forward in the rack. When the system unit rails are fully extended, the rail safety latches lock into place. This action prevents the system from being pulled out too far. While holding the system unit release latches (A) down on both the left and right sides, pull the system unit (B) out from the rack until the rails are fully extended and locked.

9. Remove the operator panel

   Release the operator panel by pushing the release tab (A) to the left. Grasp the edges of the operator panel and pull it partially out of the bay. Press the locking pins (C) inward and gently pull the operator panel completely out of the bay, taking care not to pull on the cables (B). Rotate the operator panel downward if needed, and disconnect the operator panel cables (B) from the operator panel. Record the operator panel cables orientation, for reconnecting them the same way.

10. Remove the service access cover

    Loosen the two thumbscrews (A) located at the back of the cover. Slide the cover (B) toward the back of the system unit. When the front of the service access cover has cleared the upper frame ledge, lift the cover up and off the system unit. Attention: For proper cooling and air flow, re-install the cover before turning on the system. Operating the system without the cover for more than 30 minutes could damage the system components.

11. Remove the fans

    Push the latch (A) upward to disengage the fan from the fan cage. Pull the fan (B) out of the fan cage. Repeat these steps until all fans are removed from the fan cage.

12. Remove the fan cage

    Pull the four retaining tabs (A) that secure the fan cage to its enclosure. Lift the fan cage (B) straight up and out of the enclosure.

13. Disconnect the cables from the back of the disk drive backplane

    Media device cable connector (A) can remain connected. Squeeze the media device cable connectors (B) and (C) as shown and disconnect them from their connector sockets on the disk unit backplane. Leaving the operator panel and USB cables connected, locate any other cables that are connected to the disk unit backplane and disconnect them from their connector sockets on the disk unit backplane, noting their attachment points. Note: Some systems might have additional cables attached to the disk unit backplane; not all cabling options appear in the illustration.

14. Remove the disk unit cage and backplane

    Rotate the handles outward in the direction shown to release the disk unit cage and backplane. Slide the disk unit cage and backplane out of the system unit.

15. Remove the Ethernet adapter

    Slide the latch (A) in the direction shown to release the Ethernet adapter (B). Carefully grasp the Ethernet adapter by its blue handle, and pull it straight out of its connector on the system backplane.

16. Remove the GX adapter divider

    Grasp the GX adapter divider by its top edge, and slide it up and out of the system.

17. Remove all GX adapters, if present

    Note: Record the slot location of all adapters that are going to be removed, so that they can be reinstalled in exactly the same place after the repair. If the latch is in position (B), slide it in the direction of the arrow (A) to release the GX adapters. Pinch the GX Adapter latches (C) and rotate them in the direction shown to release the GX adapter from the slot. Gently pull the GX adapter straight up and out of the system. Repeat these steps to remove a second GX adapter, if present.

18. Remove the PCI adapter dividers

    Squeeze the terra cotta latch (A) on top of the front support, and swing it up in the open position. Flex the front edge (B) of the PCI adapter divider out of the bracket and toward the rest of the divider. Pull the back edge of the divider away from the retention notches (C) in the system chassis. Repeat these steps for the other PCI adapter dividers that need to be removed.

19. Remove all PCI adapters

    Note: Record the slot location of all adapters that are going to be removed, so that they can be reinstalled in exactly the same place after the repair. If there is a long PCI adapter, squeeze the terra cotta latch (D) on top of the front support, and swing it up in the open position. If the latch is in position (B), slide it in the direction of the arrow (A) to release the PCI adapters. Carefully grasp the PCI adapter (C) by its top edge or upper corners, and pull the PCI adapter up and out of its connector on the system backplane. Store the PCI adapter in a safe place. Repeat these steps until all PCI adapters are removed.

20. Remove the auxiliary cache card, if present

    Note: When removing the auxiliary cache card, handle it by its edges, and not by the attached battery. If needed, squeeze the terra cotta latch (A) on top of the front support, and swing it up in the open position. Push the latch (B) in the direction shown to release the card. Gently pull the card (C) straight up and out of the enclosure.

21. Remove the PCI front support

    Loosen the blue retaining tab (A) that secures the PCI front support to its enclosure. Lift the PCI front support (B) up and out of the enclosure.

22. Remove the RAID enablement card, if present

    Push the tab (A) in the direction shown to release the card. Gently pull the card (B) straight up and out of the enclosure.

23. Remove the TPMD card, if present

    Gently pull the TPMD card (A) straight up and out of its slot on the system backplane.

24. Remove the middle system divider

    Loosen the two blue retaining tabs (A) that secure the middle system divider from the system chassis. Grasp the middle system divider (B) and lift it out of the system.

25. Remove the VPD card

    Press gently on the handle (A) to unlock the VPD card (B) from its slot on the system backplane. Pull the VPD card out of its slot.

26. Remove the voltage regulator module pairs

    Locate the first voltage regulator module pair. Push the connector tabs (A) out and then down to unlock one module. Pull the module (B) out of the connector. Repeat these steps to remove the other module in the pair. Keep the two modules of the pair together. Repeat these steps to remove the other module pair.

27. Remove the single voltage regulator modules

    Locate the first single voltage regulator module. Push the connector tabs (A) out and then down to unlock one module. Pull the module (B) out of the connector. Repeat these steps to remove the other voltage regulator module.

28. Remove all memory DIMMs

    Remove the memory DIMM by pushing the tabs (A) out and then down. The tabs' lever action forces the memory DIMM out of the connector. Pull the memory DIMM (B) out of the connector. Repeat these steps until all memory DIMMs have been removed from the system backplane being replaced.

29. Remove the line cord assembly

    Loosen the upper right thumbscrew (A) located on the back of the system chassis. Slide the line cord assembly (B) toward the front of the system to unlock it. Without removing the line cords, grasp the line cord assembly, disengage it, pull it upward, and place it next to the system chassis.

30. Remove the system backplane

    Note: Take care when removing the system backplane. Do not lift the system backplane by any of the attached modules. Loosen the two thumbscrews (A) located on the back of the system chassis, as shown in the figure. Push the system backplane (B) toward the front of the system - about 10 mm (half inch) - to unlock it from the system chassis. Grasp the system backplane by the metal frame (C) located at the back of the backplane. Carefully lift the system backplane out of the chassis.

31. Install the system backplane

    Note: Take care when installing the system backplane. Do not lift the system backplane by any of the attached modules. Carefully grasp the replacement system backplane (A) along two edges. Lower the system backplane at an angle, with the front of the backplane connecting with the system chassis first. When the system backplane lays at the bottom of the system chassis, slide it toward the back of the system chassis - about 10 mm (half inch) - until it locks. Tighten the two thumbscrews (B) located on the back of the system chassis, as shown in the figure, to secure the backplane to the chassis.

32. Install the line cord assembly

    Place the line cord assembly (A) into position, ensuring the slots (B) on the line cord assembly align with the pins on the system chassis. Slide the line cord assembly toward the back of the system to lock it into place. Insert and tighten the upper right thumbscrew (C) located on the back of the system chassis, to secure the line cord assembly.

33. Install all memory DIMMs

    Attention: Memory DIMMs are keyed to prevent a DIMM from being installed improperly. Note the locations of the key tabs within the DIMM connector before attempting to install the DIMM. Ensure that the connector locking tabs (A) are pushed out in the unlocked position before installing a memory DIMM. Carefully grasp the memory DIMM (B) along two edges and align the connector. Insert the memory DIMM firmly into the connector. Secure the memory DIMM by pushing in the locking tabs (A). Repeat these steps until all memory DIMMs have been installed.

34. Install the two single voltage regulator modules

    Ensure that the connector tabs (A) are pushed out in the unlocked position before installing a new voltage regulator module. Carefully grasp the module (B) along two edges and align it with the connector. Insert the module into the connector. Push the connector tabs into the locked position. Repeat these steps to install the other single voltage regulator module.

35. Install the two voltage regulator module pairs

    Install the voltage regulator modules, pair by pair. Ensure that the connector tabs (A) are pushed out in the unlocked position before installing the module (B). Carefully grasp the module along two edges and align it with the connector. Insert the module into the connector. Push the connector tabs into the locked position. Repeat these steps to install the other module in the pair. Repeat these steps to install the other pair of modules.

36. Install the VPD card

    Press gently on the handle (A) to insert the VPD card (B) into its slot on the system backplane. Push the VPD card into place until it is fully seated.

37. Install the middle system divider

    Align the two blue tabs (B) that secure the middle system divider (A) with the two holes. Slide the middle system divider down and into its position, and align it with the pin (C) in the middle on the system backplane. Tighten the two blue tabs (B) that secure the middle system divider with the system chassis.

38. Install the TPMD card, if previously removed

    Gently push the TPMD card (A) straight into its slot on the system backplane.

39. Install the RAID enablement card, if previously removed

    Push the card (B) down in the direction shown, along the sliders of the middle divider. Align the card with its connector on the system backplane. Push the tab (A) in the direction shown and gently push the card down until it engages into its slot. Release the tab (A) to lock the card into its slot.

40. Install the PCI front support

    Lower the PCI front support (A) into its location on the enclosure, aligning the tab with the hole on the back of the front chassis. Tighten the blue tab (B) that secures the PCI front support.

41. Install the auxiliary cache card, if previously removed

    Note: When installing the auxiliary cache card, handle it by its edges, and not by the attached battery. Squeeze the terra cotta latch (A) on top of the front support, and swing it up in the open position. Align the card (C) with its connector on the system backplane. Push the latch (B) in the direction shown, and gently push the card (C) down until it engages into its slot. Release the latch (B) to lock the card into its slot.

42. Install all PCI adapters, if previously removed

    Note: Reinstall the cards in the same slot locations as before the repair. If there is a long PCI adapter and if needed, squeeze the terra cotta latch (D) on top of the front support, and swing it up in the open position. If needed, slide the latch in the direction of the arrow (A) to let the PCI adapter slot accessible. Carefully grasp the PCI adapter (C) by its top edge, and align the PCI adapter with its connector on the system backplane. Press the PCI adapter firmly into its connector. Repeat these steps until all PCI adapters are installed.

43. Install the PCI adapter dividers

    If needed, squeeze the terra cotta latch (C) on top of the front support, and swing it up in the open position. Grasp the PCI adapter divider by its top edge and align the back edge of the divider with the retention notches (A) in the system chassis. Slide the front edge of the divider (B) into its slot. Repeat these steps for the other PCI adapter dividers that need to be installed. Close the terra cotta latch (C) on top of the front support.

44. Install all GX adapters, if previously removed

    Note: Reinstall the cards in the same slot locations as before the repair. If needed, slide the latch in the direction of the arrow (A) to let the GX adapter slot accessible. Align the GX adapter with its connector on the system backplane. Gently push the GX adapter straight into the system. Rotate the latches (C) in the direction shown until they latch. Repeat these steps to install a second GX adapter, if previously removed.

45. Install the GX adapter divider

    Align the GX adapter divider (A) with its sliders (B) and (C). Slide the GX adapter divider down and into the system.

46. Install the Ethernet adapter

    Check the latch (A) is in the open position to let the Ethernet adapter slot accessible. Carefully grasp the Ethernet adapter (B) by its blue handle, and align the card with its connector on the system backplane. Press the Ethernet adapter firmly into its connector. Slide the latch (A) back in the direction of the arrow to secure the Ethernet adapter.

47. Install the disk unit cage and backplane

    Slide the replacement disk unit cage and backplane into the system until you feel it engages and locks into place. Rotate the handles in the direction shown to secure the disk unit cage and backplane.

48. Connect the cables to the back of the disk unit backplane

    Media device cable (A) does not need to be touched. Connect the media device cables (B) and (C) to their connectors on the disk unit backplane. Reconnect any other cables that were detached previously. The illustration does not contain all cabling options.

49. Install the fan cage

    Check that the four retaining tabs are in open position. Lower the fan cage (A) into its location on the enclosure, aligning the blue tabs with the holes. Push firmly on the fan cage so that you are sure it fits into its position. Tighten the four retaining tabs (B) securing the fan cage to its enclosure.

50. Install the fans

    Lower the fan (A) into its location in the fan cage. Push down on the fan until it locks into place. Secure the fan by closing the latch (B). Repeat these steps until all fans are installed.

51. Install the service access cover

    Place the service access cover (A) on top of the system, about 25 mm (1 in.) from the upper chassis ledge. Hold the service access cover against the system unit and slide it toward the front of the system. The tabs of the service access cover slide beneath the upper chassis ledge. Align the two thumbscrews (B) located on the back of the service access cover with the two holes on the back of the system chassis. Tighten the thumbscrews to secure the service access cover.

52. Install the operator panel

    Carefully guide both operator panel cables (A) through the cables conduit in the extension of the operator panel while gently sliding the operator panel into the operator panel bay. Connect the operator panel cables (A) to the operator panel. Rotate the front of the operator panel upward and continue sliding it into the bay until the operator panel engages and locks into place.

53. Place into operating position

    Note: When placing the system into operating position, ensure that the cables at the back of the system do not catch or bind as you push the system unit back into the rack. Unlock the rail safety latches (B) by sliding them toward the front of the system. Push the system unit (A) back into the rack until both system-unit release latches have locked into position.

54. Install the power supply or both power supplies

    While pushing the lever (A) down, carefully slide the power supply into its location either E1 or E2 in the system. Connect the power cable (B) to the power supply. Repeat these steps to install the other power supply, if present.

55. Install the front cover

    Position the cover on the front of the system unit so that the two screws (C) align with the screw holes on the front of the system unit (A). Push the cover at points (B) to attach it to the front of the system unit as shown in the following figure. Tighten the two screws that secure the system unit to the rack. Close the front rack door.

56. Reconnect all the external cables

    Attention: To prevent damaging the FRU or the system, use the following precautions before plugging cables into a connector or adapter: Make sure that you have the right type of cable for the connector or adapter. Make sure that the cable plug is correctly aligned with the connector or adapter. Make sure that the tongue on the HSL/RIO cable plug matches the white location keys on the connector. External cables were labeled before disconnection so that they can be reconnected in exactly the same place after the repair. Reconnect all external cables to the rear of the machine you are servicing. This can include cables on the following ports: Serial SPCN GX Ethernet PCI USB

57. Install the power cords

    If you removed the power cords, perform the following steps. Identify the system unit you are servicing in the rack. Connect all power cords to the unit you are servicing. Close the back rack door.

58. Restore network connectivity

    The service processor must connect to the network to be accessible from the HMC.

    How will the IP Address of the Service Processor be managed?
    Obtain an IP Address automatically from a DHCP server	Configure a static IP Address
    ↓	Go to step60.

59. Restore service processor settings

    Enable network access to the service processor by proceeding as follows: If the network connection uses the Dynamic Host Configuration Protocol (DHCP) to establish an IP address, and uses the Hardware Management Console (HMC) as the DHCP server, no additional configuration is necessary to enable network access to the service processor. Perform the following steps: Ensure that the service processor is connected to the existing service network by verifying that the HMC cable is connected to the HMC port on the system backplane. If not already connected, connect all system power cables by plugging them into power outlets. Note: Do not start the system at this time.

    Do you have network access to the service processor?
    Yes	No
    Go to step 62.	Go to step 65

60. Restore service processor settings through the ASMI

    The Advanced System Management Interface (ASMI) is the interface to the service processor that is required to perform general and administrator-level service tasks, such as reading service processor error logs, reading vital product data, setting up the service processor, controlling the system power, and setting service processor network ports. The ASMI may also be referred to as the service processor menus. The ASMI can be accessed through https. As the network connection uses static IP address assignments, perform the following: To know your service processor network ports, if necessary, you can use the control panel in manual mode. Refer to service functions to get control panel documentation in that case. Connect a client with a Web browser directly to the service processor network ports you previously noted. It could be something like the following URLs: https://169.254.2.147 https://169.254.3.147 If not already connected, connect all system power cables by plugging them into power outlets.Note: Do not start the system at this time. Log on to the ASMI with the "admin" User ID and "admin" default Password. Change the "admin" User ID's Password and the "general" User ID's Password when prompted. To configure network access perform the following: Click on Network Configuration under the Network Services node. On the right pane, configure eth0 and eth1 network interfaces, choose for Type of IP Address 'Static', set a Host name, an IP address, a Subnet mask.

61. Restore service processor settings

    With the network connection now configured to use static IP address assignments, try to access the service processor network ports.

    Do you have network access to the service processor?
    Yes	No
    ↓	Go to step 66

62. Access the ASMI

    If you are already connected to the ASMI, click Next to continue. Otherwise to access the ASMI through the Hardware Management Console (HMC), complete the following steps: Ensure that the server you are working with is selected. Click Tasks. Click Operations, then click Advanced System Management (ASM). Note: If there is more than one service processor, you must select the primary service processor.

63. Set System Enclosure Type

    The enclosure serial number is stored in the I/O backplane. When an I/O backplane is replaced, the seven digit serial number printed on a bar-coded label on the system unit, needs to be manually inputted and stored in the new I/O backplane using ASMI. Note: To perform this operation, your authority level must be Authorized Service Provider (ID: celogin). To input the enclosure serial number: On the ASMI Welcome pane, specify your user ID and password, and click "Log In". In the navigation area, expand "System Configuration" and "Program Vital Product Data". Select "System Enclosures". In the right pane, the current system enclosures are displayed. On the system being serviced, record the enclosure serial number printed on the bar-coded label on the system unit. Enter the enclosure serial number recorded from the system unit in the "Enclosure serial number" field. Click "Save settings" to update and save the enclosure serial number.

64. Go to step 68.

65. Restore service processor settings

    If the network connection uses DHCP to establish an IP address, but does not use an HMC as the DHCP server, perform the following: Complete any network configuration necessary to allow the DHCP server to recognize and assign an IP address to the service processor. Ensure that the service processor is connected to the existing service network by verifying that the network cable is connected to the network port. If not already connected, connect all system power cables by plugging them into power outlets. Note: Do not start the system at this time.

    Do you have network access to the service processor?
    No	Yes
    ↓	Go to step 62

66. Restore service processor settings

    You have indicated that you are still not able to access the service network. You will need to reset the service processor by pressing the pin-hole switch (E) on the operator panel.

67. Go to step 58.

68. Restore service processor settings

    Change the password of the admin user ID when prompted by performing the following steps: In the navigation area of the ASMI, expand Login Profile. Select Change Password under Login Profile. Specify the required information, and click Continue. As a security measure, you are required to enter your current user password in the Current password for current user ID field. Note: Passwords can be any combination of up to 64 alphanumeric characters. The default password for the admin User ID is admin. After your initial login to the ASMI, the admin password must be changed.

69. Restore service processor settings

    Set the system name. The system name can be changed to any valid ASCII string. It does not have to follow the initialized machine type_model_serial number format. To change the system name, perform the following: In the navigation area of the ASMI, expand System Configuration. Select System Name under System Configuration. Enter the desired system name. Click Save settings to update the system name to the new value. The new system name is displayed in the status frame, the area where the Log out button is located. If another method, such as the HMC, is used to change the system name, the status frame does not reflect the change.

70. Restore service processor settings

    Set the time-of-day. In the navigation area of the ASMI, expand System Configuration. Select Time of Day under System Configuration. If the system is powered off, the right pane displays a form that shows the current date (month, day, and year) and time (hours, minutes, seconds). Change either the date or the time or both, and click Save settings.

71. Restore service processor settings

    Reenter any of the following settings that were previously changed through the ASMI, unless you want to use the default settings. Settings to be set include the following: Power/Restart Control settings. System Service Aids settings. System Configuration settings, if not already done. Network Services settings. Performance Setup settings. Login Profile settings. Update the Location code System configuration Program vital product data System enclosures Location code For example, DQxxxxx.

72. Restore service processor settings

    Reset any service processor settings that you may have set using operating system commands. You recorded these settings at the beginning of this procedure. If you choose to reset the HMC Access password, perform the following: From the HMC GUI (preferred method): Expand the Systems Management folder in the navigation tree pane. Double click the Servers folder. Use the checkbox to select a server, in the central panel. Under the Operations folder, select Change Password. Provide the desired information. Or, from the HMC command line, type: /usr/hmcrbin/chsyspwd -m managedsystem -t access --passwd --newpasswd newpassword where: The value for managedsystem is the new service processor's managed system name. No value for --passwd is entered thereby allowing authentication. The value for newpasswd is the newpassword value.

73. Restore partition data on the service processor, if you had a partition in your system

    Profile data stored in the managed server has been cleared or corrupted. To recover profile data using the HMC, proceed as follows: Expand the Systems Management folder in the navigation tree pane. Double click the Servers folder. Use the checkbox to select a server, in the central panel. In the Configuration folder if you have the Manage Partition Data folder, select Restore.

74. Update vital product data

    If your system is running IBM® i and is not managed by the HMC, you must update the load source after replacing the system backplane. Note: To update the load source without using the HMC, do the following: Load the I_BASE_01 Licensed Internal Code optical media into the device that is defined for the system and access it to perform an initial program load (IPL). Set the operator panel to 01 D M. Note: This IPL can take several minutes. When the Select a Language Group screen appears, press Enter to select the default language feature 2924 (English). Note: To change the language feature, type the language feature that appears on the media that contains the operating system; then, press Enter. Confirm the language feature by pressing Enter. The Install Licensed Internal Code display appears; select option 2 (Work with Dedicated Service Tools (DST)) and press Enter. Use the Dedicated Service Tools to make sure the disk units, including the Load Source, are reporting correctly and that there are no errors that might prevent the IPL from disk. When all errors have been resolved and the Load Source disk is reporting in correctly, continue with the next step. From the Work with Dedicated Service Tools (DST) screen, select option 2 (Work with disk units) and press Enter. Select option 8 (Update system vital product data) to identify the location of the load source disk unit. Press Enter. The Update System Vital Product Data display appears. Press Enter to confirm that you want the vital product data to be written. Press F12 twice. Press 1 and Enter to exit DST. Use the system control panel to perform a delayed power-off. Change the IPL mode to B; then, power on the system to perform an IPL from disk.

75. Go to Verifying a repair.