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Thread: PSU for P3-500 Micro ATX ?

  1. #1
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    PSU for P3-500 Micro ATX ?

    I have a slightly unusual requirement for a PSU for an in car PC.
    Rather than being for audio / visual, this project is for a car diagnostics project.
    For this reason I need an ISA slot (because one of my diagnostic cards is only available as an ISA).
    I don't need shutdown controllers or anything because the PC won't stay in the car, it will be in a metal box with handles to be chucked in the ca when needed.
    For the screen I will use my kids DVD screen and an old ATI card that has TV out.
    The p3-500 takes about 30W I think, and I would like to use junk 10G 3.5" HDs that I have lying around.
    The motherboard is a gigabyte micro ATX that I got on ebay

    The cost of a PSU for this could cost more that all the other parts combined.
    I just don't need something so complex what most of you guys are probably using.

    Any suggestions ?

    By the way I can make something myself, but life is just to busy for me to etch my own PCBs. A kit with a working design and a PCB would be cool.

  2. #2
    Neither darque nor pervert DarquePervert's Avatar
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    Have you looked in the FAQ yet?
    How about the Wiki?



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  3. #3
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    i don't see any solution on that page for less that $200 :-(

  4. #4
    Neither darque nor pervert DarquePervert's Avatar
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    Funny.
    By following the same directions in that FAQ writeup, I see the max power draw for your PentiumIII 500mhz as 28w. (If you have the PGA version it's a lot less).
    The M2ATX will provide more than enough power for what you want and is only $90 in the mp3car.com store.
    The Opus 120w also provides enough power for your setup and is about $5 more.

    I don't know what calculations you're using or dollar amounts you're seeing, but there's lots of options in your price range.
    Have you looked in the FAQ yet?
    How about the Wiki?



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  5. #5
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    I stand corrected. Yes the M2 looks quite suitable.

    My motherboard manual mentions a -5V pin on the power connector, I assume that this isn't actually necessary ?

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