I'd go for a 24 port fanless non Poe, then add a 10 port Poe.
You can get silent 40x20mm fans from Noctua, but they're achingly expensive and very low speed.
You might need to change position of cables in the plug
I had this when i did a HP procurve and a UPS in the past![]()
in my ups for example the black and red had to be swapped over
i.e. the positive and negative needed to be swapped(cannot remember exactly but used a multimeter to check at the time )
So `IF` new fans do not work you can have an `idea` why not![]()
Just rechecked my switch
Seems i have used a `fanmate` and cut/spliced the wires to be able to adjust noise/speed of fan
What voltage is the existing fans?
You should be able to pop the fan's pins out and swap them round as needed
oh crikey youre swapping with a lot larger fan -- does that have the same current draw as the small one?
Another one of your troll threads?
Purple
Interesting choice of colour, was it left over?
You have what is basically an open hole over 240v live electrics.
While I wouldn't go as far as trolling, it does seem very odd to butcher a switch in this way rather than just buy some replacement fans.
It now looks ugly, takes up more rack units than it did, and will have no resale value
Also fairly sure your fans are pointing the wrong way.
Out of interest, have you considered better ventilation for the racks? I'm just thinking you're switch is just expelling hot air into the area around it.
Edit: I agree its the best way to keep it cool by having the fans drawing air out.
Easier to filter the fans going in, rather than trying to filter every possible other entrance to the switch, where dust is going to be pulled through
Inspired me to do mine, the rack in our utility howls thanks to the switch and it drives my wife mad.
Like you I don’t care for resale, as like yours, my switch is a repurposed corporate item. The POE draw is only 4 aps so I’ll look at slowing the fans down first and then butchering it second![]()