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Updated the Workaround/Solution Section
|Affected Product ID
|UCSX 9508 Chassis PEM Retention Screw loose
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.
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.
The PEM might slide out of the chassis when the power cord is removed from the chassis.
In order to tighten the captive screws, complete these steps:
- Power down the chassis.
- Unplug the AC power cord from the rack Power Distribution Unit (PDU) end.
Caution: Do NOT remove the AC cord at the chassis end.
- Ensure the PEM is fully inserted. Check for any gaps between the sheet metal.
- Remove the Intelligent Fabric Module (IFM) and locate the screw hole.
- Torque to 4.5-6inlb or hand tighten.
- 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
Cisco provides a tool to verify whether a device is impacted by this issue. In order to check the device, enter the device's serial number in the Serial Number Validation Tool.
Note: For security reasons, you must click on the Serial Number Validation Tool link provided in this section to check the serial number for the device. Use of the Serial Number Validation Tool URL external to this field notice will fail.
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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