3845 Router with 48 port fast ethernet switch module fan speeds

Unanswered Question
Jul 29th, 2009

Hi,

ive been trying to find the temperatures at wich the fans on the 3845 router will engage the highspeed fans?

as we have some of these routers installed at branch offices, and they are engaging the loud fans. we are trying to determine at what temp this is supposed to happen, so we can devise a cooling solution to keep them quiet.

Thanks,

Andrew

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Leo Laohoo Wed, 07/29/2009 - 18:29

Hi Andrew,

I believe the 3845 fan speed only has one setting: loud.

It is done on purpose to keep the components cool.

jonesandrew Wed, 07/29/2009 - 18:42

it does have variable speeds, occaisonally you would hear the router fire up louder for a few moements, then quiten down a little.

Leo Laohoo Wed, 07/29/2009 - 20:10

Hi Andrew,

You are not talking about during the startup or bootup process are you?

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