As there is a more and high demand for switches in residential installs the 24 port switch is quite loud, even sitting at idle. I have seen one post here from someone replacing the fans for Noctua models but these does not seem to match the CFM / m3/hr specs of the factory defauls fans.
Does anyone and or Alta @Alta-Chase @Alta-MikeD @Alta-Jeff have any opnion suggestion and or good reason for these pretty high spec fans and why we should “not” replace these with noctua fans when that is a requeriment for the install? Offcourse all the obvious answers like warranty are not the ones im looking for.
And this is a “feature” request as well… why not make these fanless? or would the POE budget be a potential problem.
1 Like
Hi @Michael_NL ,
I did a video on that on my YouTube Channel. Here is a playlist of all my videos. The content is in French, but I’m sure you can understand using only the video.
I did the fan replacement with Noctua fans. It works and is very quiet BUT it requires some tweaking to make it work because they are server fans, not desktop fans, so the cable pattern is different. If you have any questions, hit me up and I will do my best to help you!
This is the video where I replaced the fans,
I hope I help you 
1 Like
I also link another thread issue on that forum,
Hi @L3houx,
Actualy i watched your video, my french is terrible but translate in combination with the video itself is more than self explanatory. Nice video and good work.
I have seen your post, thus my reference to another one replacing the fans for noctua (i did not @mention you). As i did this with previous other hardware as well i was planning to do the same on my end. I have seen your “struggle” with the wiring, but this was a fist time i have seen these models AVC fans in a switch.
Normally the Noctua fans are a match with other fans, but the fans that come from the factory in the alta labs switches pack a lot more power.
So switching the factory installed fans for noctua can cause potential problems. I want som insight from Alta self about these “mods”.
On you’re post there was no response from the alta team and i would lie to now there thougts.
btw… did you monitor your temps over time and what is your POE budget/use
1 Like
In my review, I also mention the noise of the fans at idle. 55dB instead of ~44dB with the Noctua fans.
Normally, the switch temp is between 35 and 39 degrees.
When I received the switch, I plugged it and let it run for 1 week without switching the fans and the temperature was similar to the Noctua fans.
Also, I found out that stacking the switch with other devices makes the temperature go up a little bit more around 38-39 or 40 instead of 35 when there is no other device close to it in the rackmount. I installed the switch between 2 patch panels the temperature is around 35-36 right now compared to 38-40.
Here is my new server rack installation,
1 Like
@Alta-Chase @Alta-MikeD @Alta-Jeff , i have not seen any response from your end… would you guys like to comment or leave it as is for this particular subjective question/topic.
@Michael_NL In order to maintain a particular cost range, we are constrained to a specific type of fan in our S24-POE. We’ve actually gotten plenty of positive feedback on how quiet it is in business and enterprise environments. Of course the electronics cooling world is fascinating to explore, but anything like this would definitely be outside of supported warranty.