Compute module does not power on with the PCIe expansion module attached

Symptom

IML reports the following message: Power on Denied (Service Information: Mezz Slot 1, Read Error)

Cause
  • The mezzanine pass-through card is not installed on mezzanine connector 1.

  • The mezzanine pass-through card is not properly seated on mezzanine connector 1.

  • Switch 9 on the System Maintenance Switch is not set to the ON position.

Action
  1. Verify that the mezzanine pass-through card is installed on mezzanine connector 1.
  2. If the mezzanine pass-through card is installed on mezzanine connector 1, reseat the card on mezzanine connector 1.
  3. Locate the System Maintenance Switch on the system board and verify that switch 9 is in the ON position.
    For compute module specific information, see the product user guide on the Hewlett Packard Enterprise Information Library