Skip to main content

System Management Module 3 problems

Use this information to resolve issues related the to the System Management Module.

Note
The System Management Module 3 is installed in the rear of N1380 enclosure.

System Management Module 3 does not power on​

Complete the following steps until the problem is resolved:

  1. Check if the Power Conversion Stations are installed correctly and Power Conversion Station LEDs are lit normally.

  2. Reseat the SMM3 and check the LED status again.

  3. If the problem persists, replace the SMM3.

System Management Module 3 status LED is not flashing normally​

When the SMM3 is working, its status LED flashes at 1Hz (once every second).

If the SMM3 status LED is continuously on or off, it indicate the SMM3 may have encountered a problem.

Complete the following steps until the problem is resolved:

  1. Reseat the SMM3.

  2. If the problem persists, replace the SMM3.

System Management Module 3 ping failure​

Complete the following steps until the problem is solved.

  1. Check the SMM3 IP address via Lenovo XClarity Controller and to see if Ethernet port 1 or port 2 of SMM3 is linked up.

  2. Alternatively, you can check SMM3 LEDs to diagnose the SMM3 status (see System Management Module 3 (SMM3) LEDS for SMM3 LEDs details).

    • If the SMM3 power LED and the status LED are working abnormally, reseat the SMM3.

  3. If the problem persists, replace the SMM3.

Failure to access XCC IP through SMM3​

If XCC IP address is not shown on the SMM3 interface, complete the following steps until the problem is solved.

  1. Re-install the system management sideband cable. See “System management sideband cable kit replacement” in SC750 V4 User Guide.

  2. If the problem persists, re-install the FPC cable.

    1. To remove the FPC cable, see Step 8 in “Remove the front I/O board” in SC750 V4 User Guide.

    2. To install the FPC cable, see Step 4 in “Install the front I/O board” in SC750 V4 User Guide.

      If the white line on the FPC cable is still visible after inserting, check if the connector latches are fully pulled up.
      Figure 1. Pulling up connector latches

  3. If the problem persists, contact Lenovo support.

Shortly after node installation, node fails to power on due to SMM3 failure to read node power consumption​

  1. If the SMM3 firmware version is earlier than Q4SM08E, reset the SMM3.

  2. If the problem persists, contact Lenovo support.