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ATX power supply fan noisy.

Discussion in 'Electronic Repair' started by David Farber, Apr 28, 2010.

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  1. David Farber

    David Farber Guest

    I would like to replace this two-wire, 80mm square, power supply fan. The
    power supply is used in an AudioReQuest music server and is powered on
    continuously. The part number is, NMB-MAT 7 followed by a model number of,
    3110GL-B4W-B54. 12V DC, 0.30A. I've found a few places online that have them
    listed but when I call they, don't have them in stock or the price is
    prohibitively expensive. Is there some generic fan that will replace this
    and not cost more than the power supply itself?

    Thanks for your reply.
     
  2. Adrian C

    Adrian C Guest

    Get the data sheet for that fan (it's probably old, hence out of
    production), and compare with the information available on this page for
    newer fans.

    http://www.dorothybradbury.co.uk/

    Then find your local retailers for the equivalent.
     
  3. Is there a Fry's near you? It has a variety of fans, in various sizes. You
    can probably find a close or exact match.
     
  4. David Farber

    David Farber Guest

    Yes, there are Fry's in my neighborhood. I will check it out.

    Thanks for your reply.
     
  5. UCLAN

    UCLAN Guest

    Any 2-wire, 80mm, 12VDC, 0.30A (approx) will do. Got a Radio Shack nearby?
    http://www.radioshack.com/product/index.jsp?productId=2102826 will do.

    Probably cheaper at some place like Frys.
     
  6. Baron

    Baron Guest

    David Farber Inscribed thus:
    Depends where you are my local sells them for £0.50p !
     
  7. D Yuniskis

    D Yuniskis Guest

    Hi David,

    Find another fan that has the same mounting holes (80mm -- note the
    *thickness* of the fan, also!) and operates at 12V with <= 0.30A.
    Chances are, it's just a generic fan.

    If you have access to a lot of surplus fans, look for one
    with a ball bearing *and* something that is "quiet" (assuming
    noise is an issue).
     
  8. David Farber

    David Farber Guest

    Is that, " £0.50p" some type of currency? (-;

    How much is that in US dollars and cents?
     
  9. UCLAN

    UCLAN Guest

    Well, that particular model is no longer made, but the 3110 series were
    1" (0.98") fans with a standard mounting hole pattern. The same hardware
    that was used to mount his old fan would work on the RS model.
     
  10. baron

    baron Guest

  11. David Farber

    David Farber Guest

    Wow. I'm on the wrong side of the pond. )-:
     
  12. David Farber

    David Farber Guest

    Since this is for a client, it needs to last longer than 6 months. Also, the
    cost of transporting it back and forth costs more than the fan replacement.
     
  13. David Farber

    David Farber Guest

  14. David Farber

    David Farber Guest

    Hi William,

    Thanks for the tip on extending the lifetime of the fan.
     
  15. Baron

    Baron Guest

    David Farber Inscribed thus:
    Over here every man and his dog wants at least two in their PC tower
    case. Some with pretty coloured lights that flash and change colour at
    random. ;-)
     
  16. Baron

    Baron Guest

    David Farber Inscribed thus:
    Not always a good idea. Some have a synthetic lubrication which will
    turn into sludge if you add a non synthetic oil to it. You can
    sometimes get away with it on sleeve bearings particularly older fans.
     
  17. jerryg50

    jerryg50

    57
    0
    Apr 18, 2010

    I don't know what you call expensive. A good quality fan is not very low in cost.

    Search out the catalogs or on line for a fan that will mechanically fit, and will work using the same power requirements. Take care for the air velocity, because a high rated air velocity could be too noisy if this is a concern.


    Jerry G. :cool:
     
  18. Franc Zabkar

    Franc Zabkar Guest

    Ceramic bearings appear to be even better:
    http://www.ceramicafans.com/whyceramic.htm

    - Franc Zabkar
     
  19. UCLAN

    UCLAN Guest

    While ball-bearing fans have the longevity edge over cheap sleeve bearing
    fans, they aren't necessarily quieter. And newer sleeve bearing designs,
    such as Nidec's NBRX sleeve bearing, have made great strides in longevity.
     
  20. Ian Jackson

    Ian Jackson Guest

    In message
    My PSU fan seized solid, very solid (nice and quiet, though). The
    replacement seemed rather noisy for my tastes. I eventually got the
    original fan freed off. [It needed the application of a hot soldering
    iron to the end of the spindle.] It ran for 18 months after being well
    re-oiled with WD40. It was still going fine when, some time ago, I doing
    a spot of once-in-a-while spring cleaning inside the case. So I re-oiled
    it again with some '3-in-1' oil. It's still running fine.
     
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