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3845 Router fan not slowing down?

I have just gotten my hands on a 3845 router. I have never used one before, however noticed that after initial startup the fan never slows down or "gets quieter" like on the other models. Is this normal considering the router's size, or is something wrong with the fan assembly?

Thanks all!

1 ACCEPTED SOLUTION

Accepted Solutions
Community Member

Re: 3845 Router fan not slowing down?

Hi,

It seems everything is ok with your fans.

So,get used to that sound :-)

3 REPLIES
Community Member

3845 Router fan not slowing down?

Hi,

"sh env"

With this command look,what you have wrong with your router.

Maybe it's overheated or something wrong with fan itself?

Paste output of  "sh env" command

Community Member

Re: 3845 Router fan not slowing down?

Thank you for your reply! Sorry I'm so late on mine, just got back from new years holiday!

All looks normal, see below output. I am guessing it is just because it is a massive 3845 router, whereas the other routers i have had dealings with are smaller ? Either way the fan does not get quieter or slow down after booting, it stays the same speed/noise the whole time it is powered up.

Any ideas?

And once again, thank you for your reply

------------------------------------------------------------------------------

Router>sh env

SYS PS1 is present.

        Fan status: Normal

        Input Voltage status: Normal

        DC Output Voltage status: Normal

        Type: AC

        Thermal status: Normal

SYS PS2 is absent.

AUX(-48V) PS1 is absent.

AUX(-48V) PS2 is absent.

Fan  1 Normal

Fan  2 Normal

Fan  3 Normal

Fan Speed is Normal

Alert settings:

Intake temperature warning: Enabled, Threshold: 55

Core temperature warning: Enabled, Threshold: 70 (CPU: 90)

Board Temperature: Normal

Internal-ambient temperature = 35, Normal

CPU temperature = 45, Normal

Intake temperature = 32, Normal

Backplane temperature = 29, Normal

Voltage 1(3300) is Normal, Current voltage = 3300 mV

Voltage 2(5150) is Normal, Current voltage = 5153 mV

Voltage 3(2500) is Normal, Current voltage = 2525 mV

Voltage 4(1200) is Normal, Current voltage = 1203 mV

Nominal frequency

---------------------------------------------------------------------------------------------------

Kind regards,

Nic.

Community Member

Re: 3845 Router fan not slowing down?

Hi,

It seems everything is ok with your fans.

So,get used to that sound :-)

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