Field Notice: FN - 72277 - UCS X9508 Chassis Screws Not Engaged to Retain Power Entry Module - Workaround Provided

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Updated:January 26, 2022
Document ID:FN72277

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Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision Publish Date Comments
1.1
26-Jan-22
Updated the Workaround/Solution Section
1.0
22-Nov-21
Initial Release

Products Affected

Affected Product ID Comments
UCSX-9508
UCSX-9508=
Part Alternate
UCSX-9508-U

Defect Information

Defect ID Headline
CSCwa11356 UCSX 9508 Chassis PEM Retention Screw loose

Problem Description

The Power Entry Module (PEM) for a small number of UCS 9508 units might not be secured in the chassis and could be pulled out when power cord is unplugged from the chassis.

Caution: Do NOT remove the AC cord at the chassis end until the remediation has been applied.

Background

Cisco was recently made aware of a manufacturing issue related to the PEM that might pose a safety issue, as certain PEMs were not properly secured to the chassis. The captive screws designed to secure the PEM were not correctly tightened and some chassis were shipped with the module improperly secured.

Problem Symptom

The PEM might slide out of the chassis when the power cord is removed from the chassis.

Workaround/Solution

In order to tighten the captive screws, complete these steps:

  1. Power down the chassis.
     
  2. Unplug the AC power cord from the rack Power Distribution Unit (PDU) end.
    Caution: Do NOT remove the AC cord at the chassis end.
     
  3. Ensure the PEM is fully inserted. Check for any gaps between the sheet metal.


     

  4. Remove the Intelligent Fabric Module (IFM) and locate the screw hole.


     

  5. Torque to 4.5-6inlb or hand tighten.


     

  6. Locate the screws on the left side of the chassis. Fasten the screws with a T10 torx head driver. Torque to 4.5-6inlb or hand tighten.

How To Identify Affected Products

See the Serial Number Validation section for information on how to identify units that are impacted by this issue. Only chassis identified in the Serial Number Validation Tool are impacted by this issue.

Serial Number Validation

The Cisco Support Assistant (CSA) can help verify whether a device is impacted by the issue that is described in this Field Notice. To check the device, either enter the serial number in the CSA on the right side of this page or click the following URL: https://cs.co/FNSNV.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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