question on noisy PSU

Greetings fellow overclockers!

I recently bought a PC and am pretty satisfied with it, apart from the noise. I bought the Kaze Master II fan controller (after excellent advice from this very forum, namely EarthDog and MattNo5ss) and this helped reduce the noise considerably, however the problem remains. It seems now that the source of the noise is the PSU. It's again a "fan" humming sound, I think like the one the PSU is supposed to make when it starts but then subside, you know? Well, it doesn't. It keeps humming.

It is not a matter of dust or anything, I cleaned it quite thoroughly with the vacuum cleaner. Although there was an evil "dust bunny" underneath, there was no improvement after its removal.

I read somewhere that the CPU power saving features in the BIOS can cause the PSU to emit the noise and if they're disabled this may cure the problem. What are those features, though? I should also add that the motherboard comes with an EasyTune6 thingie, if anyone's familiar with it. Perhaps something can come out of that?

Any other reasons or suggestions? I truly hope it's something that can be solved softwarewise and not simply a faulty PSU that has to be replaced. It's still under guarantee, but it's nonetheless an inconvenience. I also wouldn't want to go so far as to open the PSU myself and oil the axis of the fan, as I saw suggested elsewhere. Of course, if any of those is the real cause, I'll go for it. Oh well.

My setup:
PSU: Coolermaster SilentPro (500W)
CPU: Intel Core i7 2600 (s1155, 3,4 GHz, 8MB)
M/B: Gigabyte P67A D3 B3 (s1155, P67, DDR3)
HDD: HDD WD SATA II 1.5 TB 64MB RE4
SSD: OCZ Agility 3 Series 120 GB SSD (2,5'', Sata 6Gb/s, AGT3-25SAT3-120G)
OS: Windows 7, 64bit
(if any additional info is needed, please let me know)

Thanks again for all the feedback, I really appreciate all the help.

Do you have the no how to take it apart and oil the fan? If so you could try that..

^that will void your warranty so take that in to consideration also

No, I can't say I have the know how. Perhaps I should just take it back to the store and have them deal with it, either oil it or replace it. I'd really like this to be my last resort though, any chance the problem could be tackled otherwise?

Yea take it back to the store and see if they will replace it for you also check online it might just be a problem with that particular make/model.

Aggravating news!
Just got back from the store where they told me the noise is normal! They also said that the PSU was the most quiet thing in the PC and that the HDD or the graphics card made more noise. Here's the cool part: The place where they were trying to listen to the noise had music in the background! Is this FailBlog material or what?

Now correct me if I'm wrong, but the PSU, as any noisy gadget would, makes a very "specific" noise, meaning that it emits very specific frequencies, right? So, if you're in a large room that has music (even at low volume) it is possible that these specific frequencies are already present in the room, right?

What proves beyond doubt that they didn't listen to it right is that the HDD and the VGA are almost ENTIRELY silent!

The guys said "no,no,it's normal" so I thought to myself "oh, well, maybe they're right" so I got it back home. When I turned it on I was fuming! With the door open, you can hear the bloody thing from the next room! When you shut down, you let our a sigh of relief! Are these things characteristic of a PSU called SilentPro, whose every review says its silent? (Your forum's review read: Advantages: Silent, silent, silent.)

A question I have is this though: Is it possible that the setup requires too much power that the PSU can't handle so it works full blast all the time? The noise is the same whether I'm doing nothing or have 4 heavy programs running simultaneously.

Here's the entire setup:

CPU: Intel Core i7 2600 (s1155, 3,4 GHz, 8MB)
M/B: Gigabyte P67A D3 B3 (s1155, P67, DDR3)
HDD: HDD WD SATA II 1.5 TB 64MB RE4
CPU COOLER Corsair Air Series A50 CAFA50
RAM DDR3 Corsair 8 Gb (2x4) Kit Vengeance 1600
VGA PCI EX MSI N560GTX-Ti Hawk 1Gb
Case Coolermaster Silencio RC-450
DVD-RW Sata Sony AD-728OS-OB
SSD: OCZ Agility 3 Series 120 GB SSD (2,5'', Sata 6Gb/s, AGT3-25SAT3-120G)
OS: Windows 7, 64bit

and the culprit:
PSU: Coolermaster SilentPro (500W)

I 'm ready to go back and make a fuss if necessary, I've been trying to make this machine quiet and start working (I'm a recording musician) for two months now!

Thanx again for all the help.

Just return the psu and get a corsair cx500 looks like u just get a bad fan or something

If you do or are able to return it you may want to try something like this.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817121083

It's a little pricy but you wont be having noise issues with it.
here's a review on it.
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=253

so you don't think the setup's requirements justify the PSU running full blast?

No not at all 500 watt is the recommended wattage for a single class system

Right, I 'm off to the shop then for another episode of the dead parrot sketch.

I 'll keep you posted.

SUCCESS! I had to insist for quite as much as John Cleese, that there really was a problem and that it should be included in the warranty, but I finally prevailed! They didn't have the same model, so I got a Corsair and it's perfect (cheaper too, so I treated myself some other goodies!) After two aggravating months my extrovert pc has finally shut up!

A big thanks to everyone for their feedback and support!

Lol well nj

Glad to hear it ended well for you, I was just reading this as it was going on, hoping you would come off good in the end of it. That's how it works with most stores, push and push and they'll cave. The last thing they want is you upsetting managers and threatening to talk to corporate and such.