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Thread: ITX DC-DC power troubles

  1. #1
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    ITX DC-DC power troubles

    Hi, while I am new to this forum, I've had my first generation car pc for a few years. It ran on a regular ATX power supply, powered by an inverter. This time around, ive opted for a small mini-itx board, with a DC-DC power supply. so here is the problem:

    When i try to boot the pc from the dc-dc supply, the cpu fan turns, but nothing else. the drive and board do not boot. However when i plug this into a regular ATX supply, it works perfectly.

    My hardware:
    100W DC-DC power supply
    200W DC-DC supply (from mini-box.com)
    Western digital 40GB drive (~25 Watts consumption)
    PIII-933 chip (~23 Watts consumption)
    FX815ELT socket 370 board (~10? Watts)

    Any ideas, suggestions, would be greatly appreciated!
    Thanks!
    Chris

  2. #2
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    Success!!!

    so yea..... turns out my car cigg adapter had a fuse in it.... ".5A"

    LOL, whats the quick fix? (until its hard wired, of course) DENTYNE ICE GUM WRAPPER wrapped around the fuse. provided enough current to power that sucker right up!

    Thanks to all who emailed me and helped out!



    Chris

    feel free to AIM me "lessthanchris1" to talk about your carputer stories or just laugh at me.

  3. #3
    Maximum Bitrate shizzle's Avatar
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    Quote Originally Posted by lessthanchris1
    so yea..... turns out my car cigg adapter had a fuse in it.... ".5A"

    LOL, whats the quick fix? (until its hard wired, of course) DENTYNE ICE GUM WRAPPER wrapped around the fuse. provided enough current to power that sucker right up!

    Thanks to all who emailed me and helped out!



    Chris

    feel free to AIM me "lessthanchris1" to talk about your carputer stories or just laugh at me.
    Big red works better!


    Edit: BTW I am almost positive you mean a 5A fuse... because that is very common, and .5A would only be like 6 watts! 5A is still only 70 watts, which isn't enough either.
    Carputer status: [-*---------]
    Im thinking laptop...

  4. #4
    Maximum Bitrate shizzle's Avatar
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    BTW also, isnt there paper on one side of the gum wrapper? I think the dark side clouded your judgement on that one, padawan.
    Carputer status: [-*---------]
    Im thinking laptop...

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