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Resolving installation issues

Use this information to resolve issues that you might have when setting up your system.

Use the information in this section to diagnose and resolve problems that you might encounter during the initial installation and setup of your server.

Single server does not power on​

Complete the following steps until the problem is resolved:
  1. If you recently installed, moved, or serviced the server, reseat the server in the bay. If the server was not recently installed, moved, or serviced, perform a virtual reseat through the CMM service command. For more information about the CMM service command, see the the "Flex System Chassis Management Module: Command-Line Interface Reference Guide".
  2. Check the event log on the CMM 2 for any events that are related to the server and solve them.
  3. Make sure that the CMM 2 can recognize the server. Log in to the CMM 2 user interface and verify that the server appears in the chassis view. If the CMM 2 cannot recognize the server, remove it, and inspect the server and the back of the node bay to make sure that there is no physical damage to the connectors.
  4. Make sure that the power policy that is implemented on the CMM 2 is sufficient to enable the server node to power on. You can view the power policy using theCMM 2 pmpolicy command or the CMM 2 web interface.
  5. Replace the system-board assembly (see System-board assembly replacement).
    Note
    Until you are able to replace the system-board assembly, you can attempt to power on the server from the CMM 2.

The compute node immediately displays the POST Event Viewer when it is turned on​

Complete the following steps until the problem is solved.

  1. Correct any errors that are indicated by the light path diagnostics LEDs.

  2. Make sure that the compute node supports all the processors and that the processors match in speed and cache size.

    You can view processor details from system setup.

    To determine if the processor is supported for the compute node, see Lenovo ServerProven website.

  3. (Trained technician only) Make sure that processor 1 is seated correctly

  4. (Trained technician only) Remove processor 2 and restart the compute node.

  5. Replace the following components one at a time, in the order shown, restarting the compute node each time:

    1. (Trained technician only) Processor

    2. (Trained technician only) System board

Server cannot recognize a hard drive​

Complete the following steps until the problem is solved.

  1. Verify that the drive is supported for the server. See Lenovo ServerProven website for a list of supported hard drives.

  2. Make sure that the drive is seated in the drive bay properly and that there is no physical damage to the drive connectors.

  3. Run the diagnostics tests for the hard disk drives. When you start a server and press the key specified in the on-screen instructions, the LXPM interface is displayed by default. You can perform hard drive diagnostics from this interface. From the Diagnostic page, click Run Diagnostic > HDD test/Disk Drive Test. (For more information, see the Startup section in the LXPM documentation compatible with your server at Lenovo XClarity Provisioning Manager portal page.)

    Depending on the LXPM version, you may see HDD test or Disk Drive Test.

    Based on those tests:

    1. If the drive fails the diagnostic test, replace the drive.

    2. If the drive passes the diagnostic tests but is still not recognized, complete the following steps:

      1. Replace the drive.

      2. Replace the hard drive backplane (see 2.5-inch drive backplane replacement or EDSFF drive backplane assembly replacement section in the system Maintenance Manual).

      3. Replace the system-board assembly (see System-board assembly replacement in the system Maintenance Manual).

Displayed system memory is less than installed physical memory​

Complete the following steps until the problem is solved.
  1. Make sure that:
    1. You have installed the correct type of memory (see Install a memory module).

    2. Memory mirroring or memory sparing mode does not account for the discrepancy.

      To determine the status of a DIMM, restart the server and press the key specified in the on-screen instructions to display theLXPM interface. Then, click System settings > Memory. (For more information, see the Startup section in the LXPM documentation compatible with your server at Lenovo XClarity Provisioning Manager portal page.)

  2. If new memory has recently been installed, make sure that no configuration events are reported in the event log. If there are any events, resolve them.
    Note
    DIMMs are verified as authentic Lenovo or IBM modules by the UEFI software. If any non-authentic DIMMs are detected, an informational message appears in the system event log and memory performance might be limited. Non-authentic DIMMs are not covered by your Lenovo warranty.
  3. If the compute node was recently installed, moved, or serviced, make sure that the DIMMs are correctly seated in the connectors (see Install a memory module).

  4. Make sure that all DIMMs are enabled. The compute node might have automatically disabled a DIMM when it detected a problem, or a DIMM might have been manually disabled.

    To determine the status of a DIMM, restart the server and press the key specified in the on-screen instructions to display the LXPM interface. Then, click System settings > Memory.

  5. Run memory diagnostics. When you start a server and press the key specified in the on-screen instructions, the LXPM interface is displayed by default. You can perform memory diagnostics from this interface. From the Diagnostic page, click Run Diagnostic > Memory test.

  6. Remove DIMMs until the compute node is showing the correct amount of memory. Install one DIMM at a time until you can determine which DIMM is not working properly. Remove that DIMM and replace it with a good DIMM (see [LINK]DIMM replacement[LINK]).
    Note
    After you install or remove a DIMM, you must change and save the new configuration information by using the Setup utility. When you turn on the compute node, a message indicates that the memory configuration has changed. Press the key specified in the on-screen instructions to display the LXPM interface. Then, save the configuration.
  7. If the problem remains, contact Lenovo Support.

A Lenovo optional device that was just installed does not work​

  1. Make sure that:

    • The device is supported for the server (see Lenovo ServerProven website).

    • You followed the installation instructions that came with the device and the device is installed correctly.

    • You have not loosened any other installed devices or cables.

    • You updated the configuration information in the Setup utility. Whenever memory or any other device is changed, you must update the configuration.

  2. Reseat the device that you have just installed.

  3. Replace the device that you have just installed.

Voltage planar fault is displayed in the event log​

Complete the following steps until the problem is solved.

  1. Revert the system to the minimum configuration. See Specifications for the minimally required number of processors and DIMMs.

  2. Restart the system.

    • If the system restarts, add each of the removed items one at a time and restart the system each time until the error occurs. Replace the item for which the error occurs.

    • If the system does not restart, suspect the system board.