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xuechen02200
Beginner

C9500 48Y4C PSU fan noise

Hi,

we recently purchased a C9500 48Y4C which came with one PSU populated and a blank plate covering the other PSU slot.

Once power it on, the fan on the PSU runs constantly at 100% which generates enormous loud noise. There is nothing yet connected to the switch, and we're currently at room ambient temperature running IOS 16.9.4. 2C10ED4D.png

 

 

 

 

 

 

 

 

 

 

there is a suggestion that we need to have the second PSU slot populated to bring down the fan level inside the first PSU.

is that true? or do I have a bad PSU? 

1 REPLY 1
balaji.bandi
VIP Expert

This looks for me Bug,, We had some issue same before with version 16.9.2 - later upgrade to higher version got fixed (may not be the case with you,) but try different higher version or  stable one and check.



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