1 Copper

Fan noise T36xx, T56xx, T76xx

Hi all, 

I bought myself a used T3600 system and would like to ask owners for advice on how make it quieter.

I am not planning to stress the PC, will only use it for light tasks. 

My current strategy is the following: 


Replaced the Quadro 4000 with a new and silent GeForce 


The CPU fan is relatively quiet (~800rpm) but the temp is in the 60C+ range.

I might exchange the fan for a Noctua one to bring the temperature down.

-> Has anyone done that? 

System fans:

They are currently running at (~800rpm) with some minor noises.

I will use Speedfan to bring them down to a quieter level at ~600rpm. 


That’s the one that bothers me the most.

The fans spin continuously (unknown speed) with a slightly annoying, but not air plane type, noise.

-> Are your PSU fans also running all the time?

-> Is there a way to reduce the speed of the fans via software? 

-> Any other suggestions to bring the noise level down? 

Help is very much appreciated



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Community Manager
Community Manager

RE: Fan noise T36xx, T56xx, T76xx

Hi Ellowes,

Thanks for posting.

Here is some information you may find helpful:  http://dell.to/2wOM9Si

Dell-Robert P
Social Media Support
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