"Sup720 Causes 6513 to Shut Down"

Unanswered Question
May 7th, 2007


We are trying to setup a 6513 with a Sup720. After 8 Minutes, the Chassis Shuts Down - The Red LED on both PSU indicating "Output Failure" lids up.

Chassis runs fine With Sup 2.

What could be the cause, How to Fix?


I have this problem too.
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avmabe Mon, 05/07/2007 - 13:16

Did you upgrade the Power and fan trays when you upgraded to a Sup720?

dgahm Mon, 05/07/2007 - 17:03


The Sup 720 requires the high output fan tray. It will shutdown as you describe without it.

Please rate helpful posts.


keith.gardiner Mon, 05/07/2007 - 17:36

Look for messages dring the boot sequence relating to a the requirement for a high speed fan tray.


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