Can I remove the fan on my switch?

[Reppiy]

Hi,

I have a cisco Catalyst 2960 PoE 24 port switch that sits under my monitor.

The problem is that the fan is constantly running at 100%, and it sounds like an aeroplane.

I am only using up to 5 of the 24 ports (including the 2 gigabit ones). Would it be ok to remove the fan for this low stress operation.

If not, is there a way I can slow the fan down to make it more quiet?

Thanks.

[bcguru9384]

11 minutes ago, Reppiy said:

Hi,

I have a cisco Catalyst 2960 PoE 24 port switch that sits under my monitor.

The problem is that the fan is constantly running at 100%, and it sounds like an aeroplane.

I am only using up to 5 of the 24 ports (including the 2 gigabit ones). Would it be ok to remove the fan for this low stress operation.

If not, is there a way I can slow the fan down to make it more quiet?

Thanks.

if it has temp sensors and thermal throttling profiles i see no issues till thermal throttle kicks in and then your bandwidth will be less and latencies will increase

[NelizMastr]

It's not designed to run without a fan, probably a bad idea. You might want to consider getting a switch with less ports and passive cooling. Do you actually use PoE or not?

[Sir Asvald]

43 minutes ago, Reppiy said:

Hi,

I have a cisco Catalyst 2960 PoE 24 port switch that sits under my monitor.

The problem is that the fan is constantly running at 100%, and it sounds like an aeroplane.

I am only using up to 5 of the 24 ports (including the 2 gigabit ones). Would it be ok to remove the fan for this low stress operation.

If not, is there a way I can slow the fan down to make it more quiet?

Thanks.

Can you put it somewhere you can't hear it?  if not, you can buy an 8 port version.  No fans at all. 

[Reppiy]

32 minutes ago, bcguru9384 said:

if it has temp sensors and thermal throttling profiles i see no issues till thermal throttle kicks in and then your bandwidth will be less and latencies will increase

 

Just now, Abdul201588 said:

Can you put it somewhere you can't hear it?  if not, you can buy an 8 port version.  No fans at all. 

 

29 minutes ago, NelizMastr said:

It's not designed to run without a fan, probably a bad idea. You might want to consider getting a switch with less ports and passive cooling. Do you actually use PoE or not?

I'll try using it without a fan, and if I see thermal throttling, I'll move it or buy a new one.

Thanks for your help.

[Sir Asvald]

5 minutes ago, Reppiy said:

 

 

I'll try using it without a fan, and if I see thermal throttling, I'll move it or buy a new one.

Thanks for your help.

Not ideal to use this particular model without the fan. It can over heat quickly. I've had a 2950 nearly burned from not having its fan connected.

[Reppiy]

2 minutes ago, Abdul201588 said:

Not ideal to use this particular model without the fan. It can over heat quickly. I've had a 2950 nearly burn from not having its fan connected.

Can I use a resistor to slow down the fan?

 

[Sir Asvald]

1 minute ago, Reppiy said:

Can I use a resistor to slow down the fan?

 

You could do that.  Is the fan a blower style or it small 40mm? 

[Reppiy]

3 minutes ago, Abdul201588 said:

You could do that.  Is the fan a blower style or it small 40mm? 

it's a blower style

 

[Reppiy]

8 minutes ago, Abdul201588 said:

You could do that.  Is the fan a blower style or it small 40mm? 

also do you have an answer for the question on this topic?:

https://linustechtips.com/main/topic/862182-what-modem-should-i-get/?tab=comments#comment-10721461

 

 

 

[RedSector]

3 hours ago, Reppiy said:

Hi,

I have a cisco Catalyst 2960 PoE 24 port switch that sits under my monitor.

The problem is that the fan is constantly running at 100%, and it sounds like an aeroplane.

I am only using up to 5 of the 24 ports (including the 2 gigabit ones). Would it be ok to remove the fan for this low stress operation.

If not, is there a way I can slow the fan down to make it more quiet?

Thanks.

Reduce the fan or remove it will void warranty. 

 

Its a 12v 4.6amp blower ... fairly serious fan.

[BurningSky]

I have a 3750 which I put resistors in and used an external device to measure the temperature in the switch and only turn the fan on when it is needed. It's a fairly constant cycle; roughly 30mins off, 10mins on, but that with the resistor makes it a lot more bearable to be around. 

[Denned]

I removed the fan from all my lab switches and routers. As long as you're not using 24 ports worth of PoE, I doubt you will have any problems.