PowerEdge: How To troubleshoot Chassis Intrusion Errors - Chassis open messages

Summary: This article provides steps to troubleshoot a chassis intrusion, chassis open message for PowerEdge servers.

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.
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Symptoms

SEC0031 - The chassis is open while the power is on. - LCD Message: Intrusion detected. Check chassis cover.
SEC0033 - The chassis is open while the power is off. - LCD Message: Intrusion detected. Check chassis cover.

Cause

The machine has detected that the intrusion switch is open.
This can be a false positive message or a physical issue.

Resolution

These are the general troubleshooting steps that can resolve the matter if followed step by step:

Note: Downtime and physical access are required to complete all tasks. Stop following the guide if you find your issue has been resolved.
Dell in general recommends having the firmware updated regularly in any case.
 
  1. Turn off the machine.
  2. Check the chassis cover (and bezel)
  3. If either is not correctly installed, remove and reseat the system cover, ensure that it is flush with all edges, and that all thumbscrews are securely in place.
  4. Reseat the bezel.
  5. Open the chassis again, reseat the intrusion switch cable to the system board. Close the chassis again. Press the intrusion switch button by hand, and confirm the intrusion error clears.  
    Note: On some systems, the intrusion switch is located on the expansion card riser and requires reseating of the riser and all expansion cards. 
  6. Download and install the latest BIOS, iDRAC, and CPLD firmware updates for the server.
  7. If the chassis intrusion error is still not resolved, contact the Dell Support Team to assist you further.

Example video that explains where to find the switch and where to find the connection points:

How to replace the intrusion switch module for PowerEdge R7525

Duration: 00:01:57 (hh:mm:ss)
When available, closed caption (subtitles) language settings can be chosen using the CC icon on this video player.

Additional Information

Links to help you with the troubleshooting tasks:

PowerEdge: Updating Firmware and Drivers

Links to prepare logs before contacting the Dell support team:
Export a SupportAssist Collection Using an iDRAC9
PowerEdge: Export a SupportAssist Collection using iDRAC7 and iDRAC8

Find the link to the contact webpage here:
How to contact Dell

Affected Products

HS Series, Rack Servers, Tower Servers, XE Servers, OEMR R230, OEMR R240, OEMR R250, OEMR XE R250, OEMR R260, OEMR XE R260, OEMR R330, OEMR R340, OEMR R350, OEMR XE R350, OEMR R360, OEMR XE R360, OEMR R430, OEMR R440, PowerEdge XR2, OEMR R450 , OEMR R530, OEMR R540, OEMR R550, OEMR R5500, OEMR R630, OEMR R640, OEMR XL R640, OEMR R6415, OEMR R650, OEMR R650xs, OEMR R6515, OEMR R6525, OEMR R660, OEMR XL R660, OEMR R660xs, OEMR R6615, OEMR R6625, OEMR R730, OEMR R730xd, OEMR R740, OEMR XL R740, OEMR R740xd, OEMR XL R740xd, OEMR R740xd2, OEMR R7415, OEMR R7425, OEMR R750, OEMR R750xa, OEMR R750xs, OEMR R7515, OEMR R7525, OEMR R760, OEMR R760xa, OEMR R760XD2, OEMR XL R760, OEMR R760xs, OEMR R7615, OEMR R7625, OEMR R830, OEMR R840, OEMR R860, OEMR R930, OEMR R940, OEMR R940xa, OEMR R960, OEMR T130, OEMR T140, OEMR T150, OEMR T330, OEMR T340, OEMR T350, OEMR T360, OEMR T430, OEMR T440, OEMR T550, OEMR T560, OEMR T630, OEMR T640, OEMR XL T640, OEMR XL R230, OEMR XL R240, OEMR XL R330, OEMR XL R340, OEMR XL R630, OEMR XL R660xs, OEMR XL R6615, OEMR XL R6625, OEMR XL R6715, OEMR XL R6725, OEMR XL R730, OEMR XL R730XD, OEMR XL R760xs, OEMR XL R7615, OEMR XL R7625, OEMR XL R7715, OEMR XL R7725, OEMR XR11, OEMR XR12, OEMR XR5610, OEMR XR7620, PowerEdge XR11, PowerEdge XR12, PowerEdge XR5610, PowerEdge XR7620, Dell EMC vSAN R440 Ready Node, Dell EMC vSAN R640 Ready Node, Dell EMC vSAN R6415 Ready Node, Dell EMC vSAN R650 Ready Node, Dell EMC vSAN R6515 Ready Node, vSAN Ready Node R660, Dell vSAN R6615 Ready Node, Dell EMC vSAN R740 Ready Node, Dell EMC vSAN R740xd Ready Node, Dell EMC vSAN R750 Ready Node, Dell EMC vSAN R7515 Ready Node, Dell EMC vSAN R760 Ready Node, Dell vSAN R7615 Ready Node, Dell vSAN Ready Node R7625, Dell EMC vSAN R840 Ready Node, Dell EMC vSAN T350 Ready Node ...
Article Properties
Article Number: 000136481
Article Type: Solution
Last Modified: 05 Nov 2025
Version:  6
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