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Can't Feel Air from my Enermax Liberty 500W

S

starwars7

Senior member
Hi all, I've got a Coolermaster Centurion with a 120mm in the front and a 120 mm in the back. I feel air being blown by the 120mm in the rear, but not the Enermax Liberty 500 W PSU.

Is this a problem, how should I address it?

Thanks!
 
This should not be a problem as the load is not sufficent for the fan speed to occur. Place your hand on top of the fan and see if this would occur. I myself have a 620 (basicly a 500, just a little beefier 12v,) and kind of jumped when i could neither hear or feel any air after stopping all the other fans in the case.
 
By on top of the fan do you mean the 120mm exhaust.

I noticed little difference when I did that, which seems to confirm what you said about the 500w not having enough load for the fan speed to occur. I can see that the Enermax fan is moving, it must just be moving too slow to push air out the back.

All the fans are jacked into the DFI Lanpart MOBO, but I haven't found a good monitoring program yet. I'm just using Smart Guardian that came with the MOBO.
 
my 500W enermax liberty does the same thing... Fan turns but it doesn't blow much out the back. But, that's what it was intended to do. I'm so thankful its quiet!
 
I had the same experience on one of my builds. And I tested the rails with a multimeter and they were rock solid, maybe only .01 off, which is excellent from boot-up, to load. Look out Seasonic, you're not the only quiet PSU out there, and with a lower price to boot. Also, the +12v rails seem to be beefier than their more expensive counterparts.
 
Nothing to worry about here as others have already said. The power supply in question has a circuit that monitors load on the power supply and only ramps up the speeds when it feels it is needed. Personally, I think they've gone a little overboard with that idea; here's why...

1) The idle fan speed is too slow. Not so much for the power supply itself, but to keep the case cooling balanced and flowing, especially up top where it is somehwat hotter. They could have doubled the CFM the assembly waisted out the case at a penalty of only a few db's that in real life, nobody hears anyways.

2) Even on a high quality power supply that is very efficient like yours, it would be more efficient and the lifespan of the power supply would be longer if it ran a like 10 C cooler and doubling the flow again would solve that.

3) Like anything else that is more complicated, it's ability to ramp up fan speeds will rely on both a relay circuit and then fans responding correctly to it. There is always a slight chance the fans won't go to high speed when needed.


All this said, I have a 520 watt OCZ Powerstream model that works the very same way and for almost three years it had been quiet and worked flawlessly. You might want to pop an e-mail off to Enermax and ask them if there is a way to increase the idle speed of the fans because I'm going to do the same concerning my OCZ. Explain to them you don't want it running at full speed all the time. See, that's propobly the main reason why I chose OCZ over Enermax. When the fans do kick in at high speed, the OCZ fans are quieter than they are on the Enermax's by quite a bit. This is why it's taken me so long to get around to writing them an e-mail.

Also, seeings how the Enermaz fans are much louder at high speed, maybe having them idle a bit faster will keep them from going into "Noisemaker" mode so fast.
 
Originally posted by: starwars7
Hi all, I've got a Coolermaster Centurion with a 120mm in the front and a 120 mm in the back. I feel air being blown by the 120mm in the rear, but not the Enermax Liberty 500 W PSU.

Is this a problem, how should I address it?

Thanks!
Click to expand...



you might wanna try kicking it or fully submerging it in water. That works sometimes jk


 
dont the enermax's still come with speed control on the back? at least mine does... it doesnt push alot of air either , trying to be quiet and it works nice

i have it go full throttle always because its not even loud
 
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