PowerEdge: CPU Thermal Trip or Voltage Outside of Range Warnings logged in SEL/LC during Power Down sequence

Summary: During system shutdown, users of 15G PowerEdge servers may encounter SEL/LC messages indicating CPU thermal trip and/or voltage outside of range. These messages are spurious and do not affect system functionality. ...

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

Users may observe the following messages indicating CPU thermal trip or voltage outside of range in the System Event Log (SEL) and Lifecycle Controller (LC) during system shutdown:
 

2023-12-16  03:39:47  856  VLT0305 CPU 1 VCCIN PG voltage is within range.
2023-12-16  03:39:32  855  VLT0304 CPU 1 VCCIN PG voltage is outside of range.
2023-12-16  03:39:28  854  CPU0001 CPU 1 has a thermal trip (over-temperature) event.
2023-12-16  03:39:28  853  SYS1001 System is turning off. 


Notably, these messages may be seen only in a few systems and do not occur consistently in impacted systems.

Cause

These messages are caused by a known limitation within a system device used in the 15G PowerEdge systems. They are considered spurious and do not pose a threat to system operation.

Resolution

If users encounter these messages during an intended system shutdown or power cycle, no action is necessary; they can be safely disregarded.

Users with the following system models could apply the latest CPLD firmware available on the Dell Support Site containing the fix to remove the spurious messages.
 

Platform CPLD Version Remarks
MX750c 1.0.5 SWB# W6FF1, released in Dec 2023
R750, R650, R750xa 1.1.0 SWB# 9VPFM, released in March 2024


If this issue is seen on other models as well, the recommendation is to check for any available CPLD Firmware to update to rule out false messaging.

Affected Products

PowerEdge C6525, PowerEdge MX750c, PowerEdge R250, PowerEdge R350, PowerEdge R450, PowerEdge R550, PowerEdge R650, PowerEdge R650xs, PowerEdge R6515, PowerEdge R6525, PowerEdge R750, PowerEdge R750XA, PowerEdge R750xs, PowerEdge R7515 , PowerEdge R7525 ...
Article Properties
Article Number: 000222541
Article Type: Solution
Last Modified: 07 May 2026
Version:  5
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