[c-nsp] 2921 Fan noise

[Andrew Jones]

Hi

I've had the same issues before with other routers.

This was a 3845 and at the time we couldn't find any way to reduce the noise, but found that if we installed small cooling fans into the small cabinet they were in, we could reduce the amount of time, (if not eliminate) that the router was on its high speed fan setting.

Try looking at a 2911, not sure what your performance requirements are, but it was designed to be 2ru tall so they could fit larger (therefore quieter, due to lower rpm) fans.

Thanks,

Andrew Jones
Alphawest

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Erik Soosalu
Sent: Sunday, 23 October 2011 5:44 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] 2921 Fan noise

Anyone know if there is a way to quiet down the fans in a 2921?

 

I've got one that will be deployed in an office space and I'm going to
hear about it if I don't do something.

 

Show environment says that it is a quiet as its going to get, but the
fans are really loud still (much louder that the 2821 it is replacing)

SYSTEM FAN STATUS

=================

Fan 1 OK, Low speed setting

Fan 2 OK, Low speed setting

Fan 3 OK, Low speed setting

Fan 4 OK, Low speed setting

 

SYSTEM TEMPERATURE STATUS

=========================

Intake Left temperature: 25 Celsius, Normal

Intake Right temperature: 27 Celsius, Normal

Exhaust Left temperature: 32 Celsius, Normal

Exhaust Right temperature: 32 Celsius, Normal

CPU temperature: 54 Celsius, Normal

Power Supply Unit temperature: 26 Celsius, Normal

 

Thanks,

Erik 

 

_______________________________________________
cisco-nsp mailing list  cisco-nsp at puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-nsp
archive at http://puck.nether.net/pipermail/cisco-nsp/