Silent PSU Needed
- Thread starter SRcobra
- Start date
Quote from AnandTech -
http://www.anandtech.com/casecoolingpsus/showdoc.aspx?i=3445&p=8
"The TX750W fan is not silent, and a moderate increase in fan speed results in a dramatic increase in noise levels. At minimal load, the power supply generates 21dB(A) of noise, which isn't terrible but it isn't great either -- you wouldn't normally notice the power supply when it's installed in a system at low loads. At 50% load the volume increases 7dB(A), which definitely becomes audible. You definitely do not want to run at anything near maximum load, however, as 80% load results in 39dB(A) and 100% load is 40dB(A)! If you are interested in silence (or even near silence), there are without doubt better power supplies"
http://www.anandtech.com/casecoolingpsus/showdoc.aspx?i=3445&p=8
"The TX750W fan is not silent, and a moderate increase in fan speed results in a dramatic increase in noise levels. At minimal load, the power supply generates 21dB(A) of noise, which isn't terrible but it isn't great either -- you wouldn't normally notice the power supply when it's installed in a system at low loads. At 50% load the volume increases 7dB(A), which definitely becomes audible. You definitely do not want to run at anything near maximum load, however, as 80% load results in 39dB(A) and 100% load is 40dB(A)! If you are interested in silence (or even near silence), there are without doubt better power supplies"
Silverstone Decathlon DA700
"The highest spin we measured is 1600RPM which produces acoustic noise of up to 23dB(A). This might sound like almost nothing, but as we have mentioned in past reviews the sound pressure levels do not necessarily show the perceived loudness by human ears. A fan can have low SPL but still sound loud to human ears. The fact is that the DA700 power supply will be audible while running with full load, but if you mount it in a PC case the noise will be much less noticeable. Given most users are not likely to draw more than 350W from their power supply - even with SLI or CrossFire - and many users probably won't hear this PSU over the noise of the rest of the system."
Source from AnandTech
http://www.newegg.com/Product/Product.aspx?Item=N82E16817256035&Tpk=Silverstone DA700
ZALMAN ZM850-HP 850W
"Even though the previous graphic doesn't show how the fan accelerates before full load too well, the acoustic noise levels show the results. The fan spins just a bit faster as load increases, but it produces more noise than expected. There is absolutely no noise up to 600W of load; the PSU stays at a constant 17dB(A), which is quite low and not audible running in our acoustic chamber. If the unit is installed in a PC, users will not be able to hear it at all even with higher loads.
Now all you would need is to find two or three really quiet graphics cards and a CPU cooler and your silent system would be ready for this high-power, relatively quiet PSU. Without water cooling this will prove very difficult, since the coolers for today's graphics cards have to dissipate so much heat. Overall, however, both Zalman units deliver a very good performance from the silent point of view"
http://www.newegg.com/Product/Product.aspx?Item=N82E16817379007&Tpk=Zalman ZM850-HP
"The highest spin we measured is 1600RPM which produces acoustic noise of up to 23dB(A). This might sound like almost nothing, but as we have mentioned in past reviews the sound pressure levels do not necessarily show the perceived loudness by human ears. A fan can have low SPL but still sound loud to human ears. The fact is that the DA700 power supply will be audible while running with full load, but if you mount it in a PC case the noise will be much less noticeable. Given most users are not likely to draw more than 350W from their power supply - even with SLI or CrossFire - and many users probably won't hear this PSU over the noise of the rest of the system."
Source from AnandTech
http://www.newegg.com/Product/Product.aspx?Item=N82E16817256035&Tpk=Silverstone DA700
ZALMAN ZM850-HP 850W
"Even though the previous graphic doesn't show how the fan accelerates before full load too well, the acoustic noise levels show the results. The fan spins just a bit faster as load increases, but it produces more noise than expected. There is absolutely no noise up to 600W of load; the PSU stays at a constant 17dB(A), which is quite low and not audible running in our acoustic chamber. If the unit is installed in a PC, users will not be able to hear it at all even with higher loads.
Now all you would need is to find two or three really quiet graphics cards and a CPU cooler and your silent system would be ready for this high-power, relatively quiet PSU. Without water cooling this will prove very difficult, since the coolers for today's graphics cards have to dissipate so much heat. Overall, however, both Zalman units deliver a very good performance from the silent point of view"
http://www.newegg.com/Product/Product.aspx?Item=N82E16817379007&Tpk=Zalman ZM850-HP
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Computer_Freak
Active Member
I trust Big Fella.
He seems to know quite a bit about PSUs, from what ive seen
And I als0o hear that the Corsair is silent.
He seems to know quite a bit about PSUs, from what ive seen
And I als0o hear that the Corsair is silent.
Okedokey
Well-Known Member
Thanks for the vote of confidence there Freak, i appreciate it.
The point really comes down to what is the quietest component in your computer. No point paying double the price for a PSU that is quiet at 100% load when you are going to be using it at 40% the whole time with the hard drive cranking away at noisy levels.
However, if the OP wants a silent PSU then that is something i have not really ever tested for, so there is probaby some quiet units around. But don't overide quality for noise.
The point really comes down to what is the quietest component in your computer. No point paying double the price for a PSU that is quiet at 100% load when you are going to be using it at 40% the whole time with the hard drive cranking away at noisy levels.
However, if the OP wants a silent PSU then that is something i have not really ever tested for, so there is probaby some quiet units around. But don't overide quality for noise.
diduknowthat
formerly liuliuboy
It depends on what you consider to be "quiet". Most people claim something is quiet just because they can't hear it over the noise of their other loud parts. Take a look at silentpcreview.com for a complete list of quiet PC products. I personally don't have any experience with Corsair PSU's, but you really don't see them sold under silent PC products.
http://www.endpcnoise.com/cgi-bin/e/std/category=Quiet_Power_Supplies.html
http://www.quietpcusa.com/Quiet-Power-Supply-C1.aspx?UserID=4402067&SessionID=nL4iTYyiejXxLgwGAJzW
edit:
it looks like the Corsair 650 watt model made the list, but the 750 watt didn't. It must require too much CFM to cool effectively.
http://www.silentpcreview.com/article699-page1.html
http://www.endpcnoise.com/cgi-bin/e/std/category=Quiet_Power_Supplies.html
http://www.quietpcusa.com/Quiet-Power-Supply-C1.aspx?UserID=4402067&SessionID=nL4iTYyiejXxLgwGAJzW
edit:
it looks like the Corsair 650 watt model made the list, but the 750 watt didn't. It must require too much CFM to cool effectively.
http://www.silentpcreview.com/article699-page1.html
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Cheers for all the suggestions guys, im gonna look into it some more
If you can UK links would be better cus i live in the UK.
-Sach.
If you from UK, you could consider a brand call be quiet!
http://www.ebuyer.com/product/152159
http://www.afterhours.co.uk/zalman-...name=Zalman+ZM850-HP+Heatpipe+Cooled+850W+PSU
diduknowthat
formerly liuliuboy
Kornowski don't you have like 20 fans in your computer
. If you can hear it, it must be loud 
.
Kornowski
VIP Member
Kornowski don't you have like 20 fans in your computer
Haha. When I had my PC out my case, I had only one fan on the NB. So it was pretty silent. I could hardly heard the Corsair.