N2 Psu Fan

Topics around mechanical design, controller and electronics. Mods & hacks welcome.
mark_3d
Posts: 61
Joined: Tue Feb 20, 2018 3:50 pm

N2 Psu Fan

Postby mark_3d » Thu Apr 12, 2018 8:34 pm

I want to replace the psu fan with a more silent fan. I saw that the stock fan is a 80mm by 25mm. What kind of fan is the stock fan? rpm? CFM?

EldRick
Posts: 289
Joined: Thu Jun 22, 2017 5:55 am

Re: N2 Psu Fan

Postby EldRick » Thu Apr 12, 2018 9:43 pm


mark_3d
Posts: 61
Joined: Tue Feb 20, 2018 3:50 pm

Re: N2 Psu Fan

Postby mark_3d » Thu Apr 12, 2018 10:16 pm

EldRick wrote:http://forum.raise3d.com/viewtopic.php?f=4&t=6377

I want to replace the existing psu fan. Anyone does this?

Jetguy
Posts: 2513
Joined: Tue Mar 22, 2016 1:40 am
Location: In a van, down by the river

Re: N2 Psu Fan

Postby Jetguy » Fri Apr 13, 2018 1:09 am

The problem is, what exact PSU version do you even have?
There are 2 series of models that changed over time as the N2/N2plus has been around long enough, Meanwell discontinued the original PSU.
Second part is, if it was the original PSU type, the the fan was temp controlled anyway, and NO you do not replace it, instead you add a second constant on slow fan, and then still let the high speed temp controlled fan kick in under extreme load conditions.

If you have the newer version of the PSU, it has 2 fans and they are not temp controlled by reports.

So again, know your hardware- this is something you have to identify first.

mark_3d
Posts: 61
Joined: Tue Feb 20, 2018 3:50 pm

Re: N2 Psu Fan

Postby mark_3d » Fri Apr 13, 2018 5:05 am

I have a single fan temp controlled. Why not replaceing it instead of adding one?

mark_3d
Posts: 61
Joined: Tue Feb 20, 2018 3:50 pm

Re: N2 Psu Fan

Postby mark_3d » Fri Apr 13, 2018 6:59 am

And where to connect the additional fan? Is a 12v port inside the psu?

EldRick
Posts: 289
Joined: Thu Jun 22, 2017 5:55 am

Re: N2 Psu Fan

Postby EldRick » Fri Apr 13, 2018 4:09 pm

a) use a 120v fan, and connect it to the power input terminals on the power supply
b) use a quiet external always-on fan to cool the power supply in addition to the internal fan because it will be quieter and will ensure that the PSU gets sufficient cooling, which it might not with a quieter internal fan.

mark_3d
Posts: 61
Joined: Tue Feb 20, 2018 3:50 pm

Re: N2 Psu Fan

Postby mark_3d » Mon Jul 09, 2018 8:29 pm

which direction has the psu fan airflow? is it blowing the air from the outside to the inside or from the inside to the outside?


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