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Some HPE Alletra Storage Server 4140 servers may experience a shutdown due to a potentially erroneous high temperature reading from the CPU. These are listed as temperature sensor, 02--CPU 1 Pkg Temp" or "03--CPU 2 Pkg Temp. Sensor readings in the range of 119C to 127C have been reported; sensor values above 103C can be considered erroneous.This event will be recorded in the Integrated Management Log (IML) with messages similar to the following:The first IML entry will be marked as a “Caution” or “Warning.”System Overheating (Temperature Sensor 3, Location CPU, Temperature 124). ACTION: Check fans, processor heat sink and air baffles installation.The second IML entry will be marked as “Critical.”Automatic Operating System Shutdown Initiated Due to Overheat Condition.ACTION: Check simultaneously logged messages for cause of shutdown and address those issues accordingly.These high temperature readings have been determined to be false and do not indicate a real processor overheat event.
This issue affects the HPE Alletra Storage Server 4140 servers.
System ROM version 2.50 and future releases contain an enhancement to prevent potential system shutdowns caused by specific CPU temperature errors.Firmware update components can be downloaded from theHPE Support Centerby performing the following steps:To locate the firmware, enter the server platform name to be updated in the empty Search field and press theSearchicon next to this field.In the list of results, find and select the firmware update smart component that matches the operating system installed on the server.Download and install the online flash components.IMPORTANT:Although ROM version 2.50 will prevent a server shutdown from these false high temperature readings from the processors, a Warning or Caution level IML entry will still be logged and will appear like the one below.System Overheating (Temperature Sensor 3, Location CPU, Temperature 124) ACTION: Check fans, processor heat sink and air baffles installation.In addition, if the server is managed or monitored by OneView, then the above IML entry will cause an “Active” alert to be generated by OneView that will resemble the alert below.The server's CPU temperature is outside the normal operating range. The server will be shut down.These IML events and OneView alerts can be safely ignored. In OneView, the “Active” alert can be cleared manually.The temperature readings for sensors 2 and 3 should not exceed 103C. If the temperatures for sensor 2 or sensor 3 (temperature readings for CPU 1 and CPU 2, respectively) ever reach 103C, the server hardware has mechanisms in place to automatically shut itself down immediately to prevent damage to the processors. Sensor readings in the range of 119C to 127C have been reported to HPE; sensor values above 103C can be considered false.Revision HistoryDocument VersionRelease DateDetails2August 14, 2025The IML messages were revised and a phrase regarding sensor values above 103C was added to Description section. An IMPORTANT note with paragraphs was added to the end of the Resolution section.1May 1, 2025Original Document Release.
Operating Systems Affected:OS Independent
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