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Thread: Screeching PCP&C 750 Silencer w/ GTX 280

  1. #21
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    Quote Originally Posted by John Peterson View Post
    I would suggest that you try a non-modular PSU. Since the Zalman ZM750-HP is modular too, and we've seen reports of the same problem with modular PSUs from Corsair, Enermax, Cooler Master and Fractal Design. That's what I will do. I will get a Corsair non-modular TX650. Then I'll RMA my current modular PSU, but I'm almost certain I will get the exact same noise with the new one they'll send me, as others have even after they've replaced their PSU.
    Coil whine has absolutely nothing to do with whether or not a PSU is modular.
    Main: i5 2500K@4.6GHz w/Zalman CNPS10X Performa, Intel DZ68BC, 8GB G.Skill DDR3-1600, PNY GTX 470 + EVGA GTX 470, ASUS Xonar DX, ADATA S510 120GB, Samsung 1TB F3+1TB F1+2TB F4, Kingwin LZG 1kW, Lian-Li PC-9F, Dell U2212HM+S2209W, Win7 Professional.
    Laptop: Dell Vostro 3450, i5 2410M, 8GB DDR3-1333, AMD Radeon HD 6630M 1GB, Intel X25-M 80GB, Seagate Momentus 750GB, Win7 Home Premium.

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    Quote Originally Posted by John Peterson View Post
    To confirm that it's the same noise. Not that I doubt it. Could you try ATITool or Furmark? Because with those tools you will then be able to instantly turn the noise on and off by opening and closing the 3D window. In 3DMark the noise will be intermittent or absent during some parts of the benchmarks.
    Well, I suppose I could. But, what do you want to know? Well yes, when 3DMark06 is loading a new test, that's where the noise is the worst. Moreover, to tell you the truth, when I run demanding stuff, such as the game I play, BF2142, which I suppose isn't all that bad, I turn up all of the fans in my case. So, to be honest, the noise isn't an issue.

    Quote Originally Posted by John Peterson View Post
    I would suggest that you try a non-modular PSU. Since the Zalman ZM750-HP is modular too, and we've seen reports of the same problem with modular PSUs from Corsair, Enermax, Cooler Master and Fractal Design. That's what I will do. I will get a Corsair non-modular TX650. Then I'll RMA my current modular PSU, but I'm almost certain I will get the exact same noise with the new one they'll send me, as others have even after they've replaced their PSU.
    Personally, I'd hate to replace my HX1000/I was joking about dumping it. As a matter of fact, it just runs in my case, all nice a quiet, and emits very little heat. But, how about I buy a 5870, if I could find one? With a 5870, I could run everything on high and max resolution. Oh wait, I can already do that with my 280GTX. But, I bet that 5870 would be nice and quiet. Well, if I need an emotional tune-up in the near future, I shall buy one. But, I guess that would be a stupid waste of money, right? Well, since it's a waste of money, and a no-gain situation for my needs, I'll probably do it.

  3. #23
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    Quote Originally Posted by John Peterson View Post
    I would suggest that you try a non-modular PSU. Since the Zalman ZM750-HP is modular too, and we've seen reports of the same problem with modular PSUs from Corsair, Enermax, Cooler Master and Fractal Design. That's what I will do. I will get a Corsair non-modular TX650.
    I purchased the non-modular Corsair TX650 now and can confirm what other have reported, it's whine-free. It doesn't have any whine at all, just the fan noise which is almost inaudible. That's in ATITool, FurMark, Crysis and all other tools and games that makes the modular PSU whine.

    To be very precise I use the exact same setup with a modular and non-modular PSU and the non-modular PSU has no whine:

    Whine

    Code:
    Samsung SyncMaster 940N 1280x1024
    Antec Sonata Elite
    Fractal Design Newton R2 650W
    ASUS P5QL Pro
    Intel Core 2 Duo E7400
    Corsair XMS2 4096MB DDR2 PC2-6400 800MHz (5-5-5-18) (2x2048MB)
    HIS Radeon HD 5770
    Caviar Black 1TB
    Samsung Intern SATA DVD±RW 22x
    Silent

    Code:
    Samsung SyncMaster 940N 1280x1024
    Antec Sonata Elite
    Corsair TX650 650W
    ASUS P5QL Pro
    Intel Core 2 Duo E7400
    Corsair XMS2 4096MB DDR2 PC2-6400 800MHz (5-5-5-18) (2x2048MB)
    HIS Radeon HD 5770
    Caviar Black 1TB
    Samsung Intern SATA DVD±RW 22x
    I also use it in a slightly upgraded setup and a different graphics card with no whine still:

    Silent

    Code:
    Samsung SyncMaster 940N 1280x1024
    Antec Sonata Elite
    Corsair TX650 650W
    ASUS P5QL Pro
    Intel Core 2 Duo E7500
    Corsair XMS2 8192MB DDR2 PC2-6400 800MHz (5-5-5-18) (2x2048MB)
    XFX Radeon HD6870
    Caviar Black 1TB
    Samsung Intern SATA DVD±RW 22x
    So if you are noise conscious and want to play Crysis without a whining noise that can drive you crazy, I recommend that you use a non-modular PSU.

    To summarize the findings in this thread and begin to build a database of whining and whine-free PSUs I'll list the reported cases of whining PSUs that I've found:

    Code:
    Cooler Master Silent Pro M 600W 
    Corsair HX520 
    Corsair HX620 , 
    Corsair HX1000 
    Enermax MODU82+ 625W 
    Fractal Design Newton R2 650W 
    Zalman ZM750-HP 
    And the reported non-whining PSUs:

    Code:
    Corsair TX650 
    Last edited by John Peterson; 10-30-2010 at 09:43 PM.

  4. #24
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    It's not a model based thing... Any PSU stands a chance of whining, it's a manufacturing defect or damaged part. There are plenty of reports of all of those power supplies whining. And if the HX620 whines then so does the TX650 because they're identical internally.






    Just drop the whole thing, it's meaningless. And you bumped an ancient thread.
    It's my PSU in a box!
    Ooo-ooh,
    My PSU in a box, baby!

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