MegaWatt S-700-12 switching power supply

[dave457]

Why don't you just replace the fan with a quiet one, there cheap and easy to do

 

[ExitThirteen]

I use 24V brushless fans, while they do tend to run a bit slower they still cool nicely without being loud. I used one with a temperature sensor on my 80A supply I built. Can't even hardly hear it running at full tilt.


~Cheers~

 

[2315 Robert]

The 50 amp MWPS are loud but they will haul the mail. Great customer support. I have had ignorance issues and they have helped me out. My 36 amp is super quiet. Have 3 50's for various projects and the next one will be another 36 amp. Tie 2 of those together lots of amps and quiet as well. PS do not recommend but, that 36 will produce and sustain way over what it is rated for and so do the 50's. Been a long time since I have seen this and it is very encouraging that we have folks making good products. Exit 13's post has me think of putting larger fans to make the 50's quieter. The cases are already cut.

 

[N0NB]

Why don't you just replace the fan with a quiet one, there cheap and easy to do

Because I shouldn't have to fix a new item? Because the item information should have been honest about how loud it is?

I'll admit. I got suckered.

 

[jon666]

me 2 bro i got 125 dollars sitting in the box. if i had known it was this loud. i would not have bought it. looked good on paper but sounds like a passing jet. i got duped 2

 

[Tallman]

I don't understand this fan noise problem. I had my meanest critic(My wife) give mine a listen. She does not hold back if some thing irritates her.(She tells me I do all the time)
They must have changed vendors for the fans since they built mine.

Especially electronic noise. I had a Server running a raid storage drive and it WAS noisy. Four Xenon Processors with four separate coolers and a fan mounted in a cone duct work along with two fans on the back plane and a power supply fan to boot.
Cool air conditioned room was mandatory for it's operation.
She told me to shut it down I said not yet I'm still tweaking on it. Well she shut it down!
She turned off the Room air conditioner while I was on the road. I got home and noticed my server was down. Nothing I could do to bring it back up. Fix one error code then another, and another. It killed my Raid storage drive too. Sixteen hard drives with all of the programs and the data gone.
She wins this one.

 

[jon666]

lots of people do not like noise it drove me crazy. so i put it back in the box. and using the 40 amp supply which is almost quiet

 

[Tallman]

Has any body tried to deaden the area from the sound? You know the egg carton foam packing knocks the sound down quite a bit. I had an echo problem in a booth for recording audio and used that foam to deaden the reflected sound.

 

[dave457]

2 screws, 2 wires and about a 5 dollar parts.....sheesh

 

[jon666]

explain please

 

[N0NB]

The supply has been sold and is on its way to the new owner.

For those interested, I posted more technical details in the Product Reviews section.

 

[Mudfoot]

I thought I read somewhere that the fan was quiet. I opened my 50 amper today, turned it on and thought it had a turbocharger in it.

Can't stand that racket at all. If they are marketing this towards ham market, then they should spec a different fan. I'll change it out for something quieter for sure.

Cheap ass noisy fan.

 

[Hilift]

I would be interested to know what you change it to. I too have one I would like to make quieter

 

[Mudfoot]

I haven't tore into it yet, but likely a 5 volt fan 80-120mm. I have a few that are dead quiet and one with a thermister.

 

[w0srb]

Seen in another thread they are 80 x 80 x 25 mm. I thought 12 volts. I ordered a fan for mine. I also am wondering if the use of 2 screws is letting the fan vibrate.