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FN-416 - X620-16x PSU Failures

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TitleFN-416 - X620-16x PSU Failures
Symptoms
Customer with X620-16x with redundant 300 W PSU may experience repeated PSU failures. The failure causes the system to shut down, and the system cannot be rebooted without manual intervention to unplug or remove the failed power supply.
 
Environment
X620-16x switch with dual (redundant) 300 W AC PSU installed
 
PNMfg NumberDescription
17401908261-10X620-16x-base
17401T908749-10X620-16x-FB TAA
17401G908750-10X620-16x-BF TAA
   
10930A900985-10300W AC PSU XT FB
10943908096-10300W AC PSU BF
10933908011-10300W DC PSU FB
10944908097-10300W DC PSU BF
 
 
Cause
X620-16x draws less power than other X620 models. Redundant power supplies share the load and the current drawn from a PSU may go below the minimum level. This condition may result in components overheating, and eventually failing.
 
When a single power supply is installed, the current drawn from the PSU exceeds the minimum level and component failure due to low current overheating is avoided.

 
Resolution
Extreme recommends customers operate their X620-16x switches with a single power supply to avoid power supply failures. For X620-16x systems currently operating with two power supplies, unplugging or removing either of the power supplies will mitigate the risk of early power supply failure caused by this issue.
 
Engineering is diligently investigating several solutions and will release a fix for this issue as soon as possible.  In the meantime, customers are advised to operate their X620-16x switches with a single PSU.

 
Additional notes
Legal Notice: 
This advisory notice is provided on an “as is” basis and Extreme Networks makes no representations or warranties of any kind, expressly disclaiming the warranties of merchantability or fitness for a particular use. Use of the information provided herein or materials linked from this advisory notice is at your own risk. Extreme Networks reserves the right to change or update this document at any time, and expects to update this document as new information becomes available. The information provided herein is applicable to current Extreme Networks products identified herein and is not intended to be any representation of future functionality or compatibility with any third-party technologies referenced herein. This notice shall not change any contract or agreement that you have entered into with Extreme Networks. 

 

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