Intel BB5000XALR Specification Update - Page 12
Fan 5 may report a reading of 0 RPM after the BMC is updated, The BMC may not respond to the IPMI
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Enterprise Platforms and Services Marketing Monthly Specification Update Problem Implication Status Workaround The BMC does not give any indication if a single power supply is improperly installed in a redundant chassis. Some chassis require power supplies to be installed in specific slots if a single power supply is installed. This erratum may be fixed in a future firmware revision. None. 5. Fan 5 may report a reading of 0 RPM after the BMC is updated Problem Implication After a BMC update, fan 5 may not return an accurate reading until AC power is cycled. Intel® System Management Software and other software may display a reading of 0 RPM for this sensor. The BMC may respond as though this fan has failed and fan redundancy is lost. This causes the system fault LED and fan status LED to indicate a failure for this sensor. In addition, the fans will run in a high speed "boost" state. Status This erratum may be fixed in a future firmware revision. Workaround AC cycle the system again and the system should run normally. 6. The BMC may not respond to the IPMI command, Send Message sent via LAN Problem The BMC may not respond correctly to a Send Message command from the LAN channel to the IPMB channel. This issue only affects an IPMI 2.0 based RMCP+ session not an IPMI 1.5 based RMCP session. Implication Remote IPMI over LAN software cannot forward commands to the IPMB bus. Status This erratum is fixed in BMC release 50 and later releases. Workaround Software developers should use IPMI 1.5 based sessions to bridge commands to the IPMB channel. 6