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My PSU is too noisy, what now to buy? - Page 2

post #11 of 19
You likely aren't drawing more than 450w DC while gaming, so something must be wrong with the fan. Just RMA it. 750w is enough for two GTX 580's even.

Edit: You seem pretty adamant that you're running out of power, but it is impossible for your rig to be pushing that PSU.
Edited by GameBoy - 5/20/11 at 7:42am
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post #12 of 19
Quote:
Originally Posted by GameBoy View Post
You likely aren't drawing more than 450w DC while gaming, so something must be wrong with the fan. Just RMA it. 750w is enough for two GTX 580's even.

Edit: You seem pretty adamant that you're running out of power, but it is impossible for your rig to be pushing that PSU.
^This
post #13 of 19
Here is an idea. Keep your current PSU. And add this to power your GTX 580.

http://www.newegg.com/Product/Produc...82E16817104054

Then, you have 1200W total

One 4-pin molex from the main PSU must connect to the Booster X5 in order to turn it on.
     
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post #14 of 19
Thread Starter 
But I dont understand. For 6 months this PSU have been all quiet and all good. And now after I got the GTX580/OC, its fan have started kicking into highest gear, under heavy gaming. No buzzing nosie or anything strange noise. Just a normal sound of a spinning kicking into highest gear.

Is it still safe to RMA it then? I have isolated the sound, and it is indeed the PSU fan that is being heard.
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post #15 of 19
I would contact Seasonic about it, you are no where near the limit of that PSU and to be honest - unless I am folding on all three, my fan doesn't even spin!

I don't have any personal experience but I have heard good things. Give them a call, explain the situation and see what they say.
post #16 of 19
On the contrary, I could believe that it's normal behavior for the X750 or at least in the range of tolerance. If it follows similar behavior to the X650 (it should, since it's the same original X Series design), then the noise it produces is like this:
http://www.silentpcreview.com/article1073-page4.html
http://www.silentpcreview.com/article986-page5.html

Note that that noise is measured in an anechoic chamber with elevated ambient temperatures. Seasonic X and Corsair AX will indeed start ramping up under heavy load. You could well be going past 400W in a heavy gaming load with those parts.

Most people have experience with these PSUs running in a case with a bottom-mounted PSU with fan taking air from outside the case. In those situations, most PSUs including these are quieter at higher loads. If you're using the P160, it only has a single fan and has a top-mounted PSU, right? So the PSU would be subjected to ambients more like the hot box and less like the cold testing.

As suggested in the link, Enermax Pro/Modu87+ (Lepa Gxxx) is noted for having a very quiet fan, even quieter. If my conjecture is on track though, you're maybe as well off getting like a Fractal R3 instead and having your current X750 isolated and drawing air from outside the case. That'd be a cheaper upgrade than a new PSU.


Or it really well could be an issue with your particular sample's fan.
Edited by mikeaj - 5/20/11 at 12:45pm
post #17 of 19
Thread Starter 
Good point mikeaj. And I think you're right.

I think I'll take one of these cases here:

http://www.caseking.de/shop/catalog/...mt::13670.html

http://www.caseking.de/shop/catalog/...mt::13666.html

http://www.caseking.de/shop/catalog/...mt::14845.html

My P160 is a very old girl. Around 5 years. And might be a time to look for a new refreshment pc-case.

EDIT: About the Enermax Modu87+. The 800W-900W versions, runs between 700-1800RPM. How quiet is that compared to my current PSU?
Edited by wendigo4700 - 5/20/11 at 3:08pm
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The devils pc.
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post #18 of 19
I think all the Modu/Pro87+ and Lepa equivalents use the same gold 139mm twister bearing fan (EA142512W), so there's no reason to suspect the higher-wattage variants would be any louder than the 500W version in the table in the link above, at loads up to 500W. You won't see higher than 500W for your system. Even the 500W model is noticeably quieter than the Seasonic X Series units with high ambient temperatures and power draw above 400W.

You'd probably want to consult a different subforum about cases, but I don't think getting a normal case outfitted with foam is a good idea, particularly if those models aren't good about hard drive vibration dampening. Also, the price of the modified Lian-Li models are simply too close to the price of the very quiet original Silverstone RV02. If you were thinking about SLI in the future (why else would you want 800W+?) and still keeping the system quiet on air cooling, those RV02/FT02 designs are pretty much the only capable options. And if you weren't thinking about SLI, those prices are above Fractal Design R3, etc.
post #19 of 19
Thread Starter 
My Antec P160 is also heavily noise isolated with foam, so thats why I want another pc-case wit hthe same ability, without me needing to cut'em out.

Why do you think it wont be a good idea with foam in those cases I linked to?

I dont like the look + inside features of those "Silverstone RV02 or TF02" But I really like those I linked to
Edited by wendigo4700 - 5/21/11 at 1:40am
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The devils pc.
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