I don’t mind it that much either. But I must say it’s tucked away safely in the basement where it isn’t that critical. I wouldn’t want it my living room 
Currently I’m doing some cnc work and with the noise generated by the milling bit cutting through the mdf + the sound of the vacuum for dust collection, I don’t even hear the power supply anymore (or the stepper drivers for that matter) 
It isnt so bad for me either, but i thought id try it since it was a real cheap thing to do
i like listening to the printing noises, sans the vibration
Just new to this topic and got the A350 power unit.
Would fan be ok? this
Data: 24v, 404040, 7.9 CFM, 29db(a)
Regards
Graeme
Yeah that would work but its bigger
so you would need to adapt it
if u wana just swap out you need 35mm x 35mm x 10mm
else there might already be a 40mm adaptor in this thread someplace
A great good fan for this purpose. My workplace has been nice and quiet for months now.
im looking to swapping a noctua fan eventually i just havnt gotten into opening to unit up yet. ntm if it isnt broken … dont fix it lol.
…disconnect the fan and leave it?? only got up to 40C with it off
Cant seem to hear any audio so I dont know if you talked about this at all but…
It depends what you are doing.
Some activities require more current than others which would generate more heat.
Ordered these, same size, easy to fit but had to reverse the contacts.
WINSINN 35mm Fan 24V Hydraulic…
What a difference
Regards Graeme
Just swapped the fan out now for the recommended one from Aliexpress, gosh what a difference it makes in noise level. I can stand to be in the same room now.
Hardest part was fiddling with the wires in the plug. Just as well the order comes with 2 fans as I somehow wrecked the metal in the first one, but no problem in the 2nd one.
Do I understand it right? This fan can be used without any new backplate ans stepdown converter, just swapping the cables?
If yes, I would buy this fan WINSINN 35mm Lüfter 24V Hydrauliklager bürstenlos 3510 35x10mm
yeah you can buy a direct size replacement 24VDC fan and the hydrauic bearings are supposed to be quietest.
I had ordered a dual ball bearing version and its was nicer but i also got a hydraulic bearing and im going to try that next.
you may or may not need to change the pins on the connector side, depending on how its wired.
I’ve done it and got a noiose reduction by 10dB
I guess SM gave up on fixing this issue and now after spending >=$1.3k people still have to hack it? I got my printer in december and fan is noisy. @Edwin i see you were looking into this back in April. Any updates?
Lol,
I agree with your tenacity, but I dont know what you really expect them to do about it at this point. They might address it some day on future shipments when inventory is consumed but its not like they are going to send everyone replacement power supplies because the fan is noisy.
Well, they could offer a company selected and tested spare HQ fan on their store, with the correct specifications and connectors. This would stop all this noise (!!) in the media.
That would be cool, yeah.
@MooseJuice the issue was raised back in April, not just now and @Edwin mentioned that they’re looking at potential fixes. Otherwise he could just say that it’s too late to change anything and we could continue enjoying the noise.
If it’s just replacing a hardware component (fan), it could be incorporated at some into the production process, so newer orders wouldn’t have this issue. I assume the production is happening in relatively small batches anyway (based on the deliveries schedule).
You may notice that there were changes to the power module already at some point (originally the switch button was on top, but now it’s on the back), so changing something along the way is not impossible.
And yes, as others suggested, offering a fan replacement at nominal or no cost would be a good gesture from the company.
I mean i get that, and yeah they can certainly revise the production, but if they were making everything in small batches people’s printed manuals wouldn’t have bad information in it and people wouldn’t still be receiving bad filament or poorly assembled hotends.
and even now, they have a revised aluminum web assembly, but new shipments are still coming in as the old one.
they say they look at things, doesnt mean that they are going to do anything about it. they probably have x amount of asseembled power supply units, and as they go to replace them, they may at that point address it - but it doesnt seem likely they will unpack them and take them apart to change it out
i think they have alot more important things to worry about than a fan being noisy at this stage, there are tons of issues to resolve.