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Reduce fan speed

Discussion in 'Windows XP' started by Gary, Mar 16, 2010.

  1. Gary

    Gary Flightless Bird

    sounds like my pc is ready for take off.... The fan gives 3 sounds: Loud,
    louder, loudest and alternate on their own. Is there any way to reduce the
    fan speed or is there some program that is constantly running?
     
  2. Ben Myers

    Ben Myers Flightless Bird

    "Gary" <Gary@discussions.microsoft.com> wrote in message news:8E672C07-A476-4D1E-88FF-8EF43525E10B@microsoft.com...
    > sounds like my pc is ready for take off.... The fan gives 3 sounds: Loud,
    > louder, loudest and alternate on their own. Is there any way to reduce the
    > fan speed or is there some program that is constantly running?


    I suggest you replace the fan, or at least clean and lubricate it.

    http://www.google.com/search?hl=en&source=hp&q=computer+fan

    Ben
     
  3. SC Tom

    SC Tom Flightless Bird

    "Gary" <Gary@discussions.microsoft.com> wrote in message
    news:8E672C07-A476-4D1E-88FF-8EF43525E10B@microsoft.com...
    > sounds like my pc is ready for take off.... The fan gives 3 sounds: Loud,
    > louder, loudest and alternate on their own. Is there any way to reduce the
    > fan speed or is there some program that is constantly running?


    It may be running so hard because the PC is overheating. Has it always been
    this loud, or is a fairly recent development? How old is the system? Have
    you ever cleaned out the interior, heatsinks, and intakes? Try a program
    such as HWMonitor http://www.cpuid.com/hwmonitor.php to check your temps.
    If the system is pretty clean, then it may be something running hard in the
    background. Use Task Manager to see if that's the problem.
    --
    SC Tom
     
  4. Jose

    Jose Flightless Bird

    On Mar 17, 1:33 am, Gary <G...@discussions.microsoft.com> wrote:
    > sounds like my pc is ready for take off.... The fan gives 3 sounds: Loud,
    > louder, loudest and alternate on their own. Is there any way to reduce the
    > fan speed or is there some program that is constantly running?


    You probably don't want to reduce the fan speed - you want to know why
    it is changing, if it is normal and if it is not normal, fix it.

    We don't know anything about your computer, so do this and we will:

    Please provide additional information about your system:

    Click Start, Run and in the box enter:

    msinfo32

    Click OK, and when the System Summary info appears, click Edit, Select
    All, Copy and then paste the information back here.

    There will be some personal information (like System Name and User
    Name), and whatever appears to be private information to you, just
    delete it from the pasted information.

    This will minimize back and forth Q&A and eliminate guesswork.

    If you have a desktop, here are some general cleaning instructions:

    http://www.bleepingcomputer.com/tutorials/tutorial118.html

    You do not want the inside to look like these pictures:

    http://www.theregister.co.uk/2009/11/13/ventblockers/print.html

    You need to open the case and determine if the fan is in the power
    supply, CPU or video card fan (if so equipped) and then you can decide
    what to do. Which is the noisy fan? Without that information, you
    will be guessing. Fan bearings are sealed and to not require
    lubrication - if the fan is defective, you need to replace it - not
    lubricate it. Fans can wear out. If it is dirty, you need to clean
    it.

    It is interesting to know the temps, but when you see the temp, will
    you know if the temp is too high for your configuration or is it
    within an optimum range? What will you do when you know the temps?
    What is too hot for you? My desktop CPU temperature is 31C. My
    laptop is 34C. How do I know if that is too hot and what do I do
    about it?

    Fan speeds can sometimes change when they need to and this can be
    annoying when they do their job so you can adjust them to always run
    at some maximum speed so the speed never changes. It could be
    changing because it is supposed to change based on what your system is
    doing at the time.

    Are you playing games? Games are sometimes CPU and video intensive
    and can cause temps to go up a lot. Do you have the issue when you
    are not playing games? If you are a gamer, your system may not be
    designed for the intensity and you may need to make some adjustments.

    If you have a laptop, the cleaning instructions are available, but
    depend on your make and model (which we'll know when you do the first
    part).
     
  5. Paul

    Paul Flightless Bird

    Gary wrote:
    > sounds like my pc is ready for take off.... The fan gives 3 sounds: Loud,
    > louder, loudest and alternate on their own. Is there any way to reduce the
    > fan speed or is there some program that is constantly running?


    Run a copy of Speedfan. Don't adjust anything. Just read out the
    temperatures inside the computer. They will give you some idea
    why the computer fan is running so aggressively.

    http://www.almico.com/sfdownload.php

    http://www.almico.com/speedfan440.exe

    The program, when it is running, looks like this.
    Using the main "readings" windows is good enough. Note
    that the labels used ("CPU", "System", "HDD") may not be
    correct. It may say "Temp 1", "Temp 2", "Temp 3". You can
    post whatever temperatures it shows, and get some feedback.

    http://www.almico.com/images/mainwindow.gif

    In that example, a CPU temperature of 49C might be fine,
    if the CPU was flat out. Generally, you want to stay below
    65C, so that you get the full performance from your computer.
    It may slow itself down otherwise. (Some CPUs in the
    Intel Prescott Pentium 4 generation, may be difficult to
    cool well. There is no reason to panic if you note a relatively
    high temperature. If the CPU type is one of the lower power
    variety, then you'd be more curious if it was running 65C.)

    The hard drive temperature is measured by a thermistor inside
    the drive. Newer drives are probably equipped with a real readout.
    There are cases of hard drives, which report a temperature, but it
    never changes. In that Speedfan example screenshot, a temperature
    of 30C is pretty good for the hard drive. If it was hitting 50C,
    you might be concerned. Fresh intake air on my computer blows right
    over the drives. My computer is reporting right now, that both my
    hard drives are at 26C.

    Another program that can report hard drive temperature, is HDTune.
    Version 255 is the free version, suitable for quick checks. The
    drive temperature is shown on the screen when the program is running.
    (This works as long as the path to the hard drive, supports
    SMART diagnostics. Some RAID controllers prevent that kind of access.)

    http://www.hdtune.com/files/hdtune_255.exe

    The purpose of doing this kind of checking, is to get some
    idea how dirty the inside of the computer might be getting.

    In some cases, when tiny fans are used on things like video cards,
    the lubrication on the fan may evaporate, and the fan can stall.
    The GPU may get so hot, as to melt some of the plastic in the area.
    To check the video card GPU temperature, if Speedfan can't see it,
    you can use GPUZ.

    http://www.techpowerup.com/gpuz/

    The hottest report I've seen so far for the GPU on a video card,
    is 200C, and somehow the card survived. My current video card
    runs the fan at low speed and reports 48C or so.

    By taking note of the room temperature, and internal component
    temperatures inside the computer case, when the computer is
    clean and new, you have a "baseline" for comparison. If you
    check later and find elevated temperatures, open up the case
    and find out why. It could be dust and dirt plugging a filter.
    Or, like in the video card case, the fan may have melted and
    there might not be any cooling at all.

    Some Dell/HP computers may use a large central fan, to move
    cooling air through the box, as well as cool the CPU. The fans
    may have quite large CFM ratings, like 130CFM. If the computer
    ever turns up that fan, you'll know about it right away :)
    It could be your CPU is overheating, or the air inside the
    computer case is a lot hotter than normal. I expect the reason
    they use fans like that, is to scare the hell out of you when
    the computer is getting a bit warm :) It makes it easier
    to convince people to maintain their computer, if it makes
    scary noises :)

    You have to be a little careful when cleaning the computer.
    I managed to damage a fan the other day, while wiping dust off
    the fan blades. You can damage the bearings on a cheap fan,
    with only a little bit of mechanical force. The result may be
    excessive vibration, the next time you use the computer. I had
    to buy a 120mm replacement, to eliminate the noise. Fans come
    in about four capacity ranges (low, medium, high, ultra), so
    if you ever need to replace a fan, you need to match the type
    to get the same performance. It isn't as simple a matter
    of just buying something with the same mechanical dimensions
    (like 120mm x 120mm x 25mm). In the case of the "hoover" style
    fans used on things like the BTX form factor computers, you
    can find more or less exact replacements listed on the web for
    them. You wouldn't expect to find the right fan at Radio
    Shack in that case.

    Good luck,
    Paul
     

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