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Thread: sproggy powersupply

  1. #1
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    Question sproggy powersupply

    Just a quick question... uhm well...

    Can anybody tell me if sproggies PSU wil have enough power to run a MB + athlon tb 850 + gforce 2mx tvout + philips accoustic edge + 40Gb maxtor?

    And if not, does anybody know how to make/ where to get a powersupply that will do the job?

    Cheers!
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

  2. #2
    FLAC
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    Post

    no, you will need a 250watt supply

    http://www.keypower.com/DC_power/DX-250H.htm

    KP-DX 200Q (12V DC -&gt; 200watt AT) $121
    KP-DX 250H (12V DC -&gt; 250watt ATX) $164

  3. #3
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    Thumbs up

    thanx for your comment bgoodman, but $165 doesn't fit in my budget, could you tell what can be powered with sproggies PSU (cahnging only the MB & proc)?
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

  4. #4
    FLAC
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    Post

    lol...get an arise psu. It will solve all your problems and maybe future onces. I hope your mb is AT style.
    abcd-1
    Author of CobraI,II,III and now CobraIV.
    You can contact me on AOL instant messenger....nick is cenwesi or cenwesi3

  5. #5
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    I built sproggy's power supply. The problem you will have with it powering that much stuff because it has trouble supplying enough 12V current. I'm working on a modification to help this out using the MAX1771. I also made a bit of a mod to up the 5V current. Basically ran two MAX787's in parallel... I'll have pictures posted soon.
    j
    j's MP3Car.com Web Site
    [######----] 60% complete (1st try)

  6. #6
    Maximum Bitrate Raas's Avatar
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    Maybe I also could do something like that
    Using 2 MAX787 and 2 MAX788 will supply more than enough power vor the 5v and 3.3v

    Have to search for something that can handle like 12v@5a (and then maybe use 2 of them ??)

    Q:
    Do computers use more than 5a @ 3.3v
    (I'm guess it's only needed for memory and processor, but do they use so much power?)
    (I ask this because I have 2*MAX788 and 4*MAX787 and when the computers don't use too much current at 3.3v, than I maybe could use the other parts for a second power-supply, cause I don't think I will only build one... girlfriend already likes the Idea and also wants one )

    Greetz
    Raas - The Netherlands
    ME: VIA epia m10000, lilliput 7', opus 150w, 80gb<br>
    GF: IBM Thinkpad 380, ext. 3.5 80gb, 40x4, PB-IR

  7. #7
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    Cool

    I'm wondering....

    after looking hard at sproggies schematic, it seems pretty easy to get +5V @ 10A , +3.3V@ 10A,
    only problem is the 12V part, I cant figure out why the max. current is so low, I checked national's website and it says that the max current is 5A, so is the T6 the problem? I don't get it...

    Cheers!
    If at first you don't succeed.........
    destroy all evidence you tried

    for info on t6369c LCD or Presslab's powersupply check:
    http://www.namms.tk <=updated!!

  8. #8
    FLAC
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    Post

    The power supply I'm building will supply 2 amps at 12 volts. (that is with an 8-14 volt input.)

    If you want to make sure that your input won't go below 11 volts, it will supply 3 amps.

    If you make sure it won't go below 12 volts, it will supply 3.3 amps.

    I just tested it for 5 minutes drawing 3.5 amps with a 12 volt input and it worked just fine.

    Jeff_
    MPEGBOX - Plexiglass Computer
    www.mpegbox.com

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