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Optional-device problems

Use this information to solve problems related to optional devices.

External USB device is not recognized​

Complete the following steps until the problem is resolved:

  1. Update the UEFI firmware to the latest version.

  2. Make sure that the proper drivers are installed on the compute node. See the product documentation for the USB device for information about device drivers.

  3. Use the Setup utility to make sure that the device is configured correctly.

  4. If the USB device is plugged into a hub or the console breakout cable, unplug the device and plug it directly into the USB port on the front of the compute node.

PCIe adapter is not recognized or is not functioning​

Complete the following steps until the problem is resolved:

  1. Update the UEFI firmware to the latest version.

  2. Check the event log and resolve any issues related to the device.

  3. Validate that the device is supported for the server (see Lenovo ServerProven website). Make sure that the firmware level on the device is at the latest supported level and update the firmware if applicable.

  4. Make sure that the adapter is installed in a correct slot.

  5. Make sure that the proper device drivers are installed for the device.

  6. Resolve any resource conflicts if running legacy mode (UEFI). Check legacy ROM boot orders and modify the UEFI setting for MM config base.

    Note
    Ensure that you modify the ROM boot order associated with the PCIe adapter to the first execution order.

  7. Check Lenovo Data Center Support for any tech tips (also known as retain tips or service bulletins) that might be related to the adapter.

  8. Ensure any adapter external connections are correct and that the connectors are not physically damaged.

  9. Make sure that the PCIe adapter is installed with the supported operating system.

Insufficient PCIe resources are detected.​

If you see an error message stating “Insufficient PCI Resources Detected,” complete the following steps until the problem is resolved:

  1. Press Enter to access System Setup Utility.

  2. Select System Settings > Devices and I/O Ports > PCI 64–Bit Resource Allocation, then; modify the setting from Auto to Enable.

  3. If the Boot Device does not support MMIO above 4GB for Legacy Boot, use UEFI Boot Mode or remove/disable some PCIe devices.

  4. DC cycle the system and ensure the system is enter UEFI boot menu or the operating system; then, capture the FFDC log.

  5. Contact Lenovo technical 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 system setup. When you start a server and press the key according to the on-screen instructions to display the Setup Utility. (For more information, see the “Startup” section in the LXPM documentation compatible with your server at Lenovo XClarity Provisioning Manager portal page.) 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.

  4. Reseat the cable connection and check there is no physical damage to the cable.

  5. If there is any cable damage, then replace the cable.

A Lenovo optional device that worked previously does not work now​

  1. Make sure that all of the cable connections for the device are secure.

  2. If the device comes with test instructions, use those instructions to test the device.

  3. Reseat the cable connection and check if any physical parts have been damaged.

  4. Replace the cable.

  5. Reseat the failing device.

  6. Replace the failing device.

CPU does not reach the maximum Turbo frequency​

Due to Intel processor transient throttling behavior in turbo, the CPU turbo ratio limit of 95W processor is set to lower frequency as the default setting to avoid processor throttling.

Errors occur when installing Windows operating system​

When all eight storage drives have been installed, and the system has been set to software RAID mode in the UEFI settings, regardless if the disks are configured as an array or as separate disks, drives 6 and 7 cannot be used to install the Windows operating system.

  1. If errors occur, install the Windows operating system in other drives.

PCIe slots cannot be disabled​

When the ThinkSystem M.2 SATA/NVMe 2-Bay Non-Hot-Swap RAID Enablement Kit is installed, disabling PCIe slots through UEFI setup menu or LXPM is not supported.