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Power Supply

Discussion in 'Windows XP' started by JohnSmith1, Feb 9, 2010.

  1. JohnSmith1

    JohnSmith1 Flightless Bird

    Hi,

    I would like to change my power supply but don't know what to get. Is there
    any software that will tell me about my current power supply and recommend a
    new one.

    thanks.
     
  2. C

    C Flightless Bird

    JohnSmith1 wrote:
    > Hi,
    >
    > I would like to change my power supply but don't know what to get. Is there
    > any software that will tell me about my current power supply and recommend a
    > new one.
    >
    > thanks.


    Why do you want to change it? What you would need would depend a lot on
    what kind of video card you have.

    --
    C
     
  3. dadiOH

    dadiOH Flightless Bird

    JohnSmith1 wrote:
    > Hi,
    >
    > I would like to change my power supply but don't know what to get. Is
    > there any software that will tell me about my current power supply
    > and recommend a new one.
    >
    > thanks.


    If you'll open the case and look at the power supply you'll find the wattage
    of the current one written on it.

    --

    dadiOH
    ____________________________

    dadiOH's dandies v3.06...
    ....a help file of info about MP3s, recording from
    LP/cassette and tips & tricks on this and that.
    Get it at http://mysite.verizon.net/xico
     
  4. Don Phillipson

    Don Phillipson Flightless Bird

    "JohnSmith1" <JohnSmith1@discussions.microsoft.com> wrote in message
    news:C34A32AE-DD1C-4C3A-A7A5-2860EB01AC2D@microsoft.com...

    > I would like to change my power supply but don't know what to get. Is

    there
    > any software that will tell me about my current power supply and recommend

    a
    > new one.


    Your main consideration is whether your PC is a desktop
    or laptop. Desktop Power Supply Units are so simply connected
    and so cheap that a specialist computer shop can test yours on
    the counter and, if needed, supply a new one without installation charge.
    Laptops however are more complicated.

    --
    Don Phillipson
    Carlsbad Springs
    (Ottawa, Canada)
     
  5. David B.

    David B. Flightless Bird

    First question is why? You have no idea what you have now but you feel you
    need a new one for what reason?

    --


    --
    "JohnSmith1" <JohnSmith1@discussions.microsoft.com> wrote in message
    news:C34A32AE-DD1C-4C3A-A7A5-2860EB01AC2D@microsoft.com...
    > Hi,
    >
    > I would like to change my power supply but don't know what to get. Is
    > there
    > any software that will tell me about my current power supply and recommend
    > a
    > new one.
    >
    > thanks.
     
  6. smlunatick

    smlunatick Flightless Bird

    On Feb 9, 11:46 am, JohnSmith1 <JohnSmi...@discussions.microsoft.com>
    wrote:
    > Hi,
    >
    > I would like to change my power supply but don't know what to get. Is there
    > any software that will tell me about my current power supply and recommend a
    > new one.
    >
    > thanks.


    Sorry, but without a more detail question and with what you had
    posted, this would lead people to believe that you might not have the
    "know-how" to replace it yourself.

    If you are not comfortable with "opening" your PC, bring it to a
    repair centre.
     
  7. Paul

    Paul Flightless Bird

    JohnSmith1 wrote:
    > Hi,
    >
    > I would like to change my power supply but don't know what to get. Is there
    > any software that will tell me about my current power supply and recommend a
    > new one.
    >
    > thanks.


    To start with, not all supplies are of standard design. The vast majority
    are, but there were some machines where the wiring harness is wired differently
    than the standard. In some cases, the supply may even have an extra connector
    on it, which you can't find on a store-bought supply. You can start by comparing
    wire colors on your main harness, to the colors stated in the standard. That might
    give you a hint your supply is not standard. Googling your computer name and
    "replacement power supply" wouldn't hurt either. There may be hints there, as
    to whether it is standard or non standard. For the mechanically smaller supplies, the
    main problem with substitutions there, is the form factor - getting a
    unit that fits, and the screws line up, the fan points the right way, and so on.
    For full sized ATX supplies, that is less of an issue. (You can still have problems
    with screw holes, but it is less likely to be a total flop.)

    (Three generations of ATX standards...)

    http://web.archive.org/web/20030424...org/developer/specs/atx/ATX_ATX12V_PS_1_1.pdf

    http://www.formfactors.org/developer/specs/atx/ATX12V_1_3dg.pdf

    http://www.formfactors.org/developer/specs/ATX12V_PSDG_2_2_public_br2.pdf

    *Every* rating on the supply label is important. There is a label printed
    on the side of the supply, with the limitations of power in watts for the
    total supply, current limitations for individual rails and so on. Buying
    a supply with larger capacity would ensure those limits are met, and would
    not require evaluating the hardware components inside.

    It is possible to calculate (in a rough fashion), the needs of a particular
    set of hardware. For example, if you were planning on adding a large video
    card to the computer, it is possible the manufacturer of the computer
    did not provide enough power, for any possible upgrade. In such a situation,
    you take the hardware inventory (disks, optical drives, processor type,
    all the jazz inside the box), and then do a calculation. (I've probably
    done the calculation a hundred times in USENET posts, and it is relatively
    easy to do.)

    There are also a few web based calculators, but some of them end up
    computing a power supply size which is double what is required. Which
    is why I won't be posting any web URLs to such sites. (You could close your
    eyes and just randomly point at the web page on Newegg with all the power supplies
    listed, and get as accurate an answer.) The only web site that did a good job,
    closed a number of years ago. Takaman used a spread sheet approach, so you can
    see the numbers each item involved, and use your own technical judgment as to
    whether they're accurate or not. The defunct web site page is archived, so you
    can play with this tool, but since the web page is so old, I don't recommend it
    for recent computers, as it is for a previous generation of hardware.

    http://web.archive.org/web/20040411032947/http://www.takaman.jp/psu_calc.html?english

    In terms of computer architecture, the power supply is not "plug and play". There is
    *no* digital interface, between the power supply and the computer. The computer
    software cannot "query" the power supply, and ask for details. All the computer
    knows, is it is powered, but not how good, not how much margin or extra capacity
    is available. Only a human can gauge what is going on, since the power supply
    can be made cheaper by making it "dumb". It is possible in theory, to fully
    instrument a power supply, to give all details. But then you'd have a whole wall
    of dials and indicators on the side of your computer, and it would look like
    you were flying the Space Shuttle. You can't make a power supply for $20,
    if you put instruments or intelligence in it.

    Paul
     
  8. db

    db Flightless Bird

    not sure why you want
    a different power supply.

    I hope you don't think that
    you will ascertain more
    computing power with it.

    however, it is not for us to
    assume what your reasons.

    so a direct response to
    your inquiry can be found
    here:

    http://tinyurl.com/cjo67p

    incidentally, they are relatively
    easy to replace

    but you must also take into
    consideration the p.s.'s design
    and size, like paul eluded to
    in his post.


    --

    db·´¯`·...¸><)))º>
    DatabaseBen, Retired Professional
    - Systems Analyst
    - Database Developer
    - Accountancy
    - Veteran of the Armed Forces
    - Microsoft Partner
    - @hotmail.com
    ~~~~~~~~~~"share the nirvana" - dbZen

    >
    >


    "JohnSmith1" <JohnSmith1@discussions.microsoft.com> wrote in message news:C34A32AE-DD1C-4C3A-A7A5-2860EB01AC2D@microsoft.com...
    > Hi,
    >
    > I would like to change my power supply but don't know what to get. Is there
    > any software that will tell me about my current power supply and recommend a
    > new one.
    >
    > thanks.
     

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