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Thread: Calculating Amperage

  1. #11
    Low Bitrate marshallh's Avatar
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    As far as I know, just one wire is sufficient, I'm pretty sure they're hooked up in the same place anyway, they're just for redundancy. If anybody knows more, correct me.
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    Mitsubishi 3000GT car computer
    Previous budget Honda carputer

  2. #12
    Fusion Brain Creator
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    Quote Originally Posted by marshallh
    As far as I know, just one wire is sufficient, I'm pretty sure they're hooked up in the same place anyway, they're just for redundancy. If anybody knows more, correct me.


    gotta cut them all, and tie them all together.

    multiplying by 2 or 4 will not work because the multimeter has a higher resistance than the piece of wire that is completing the second path - that is, more current will flow throught he second or third or fourth wire than the multimeter

    either cut them all and measure or just tell us what you have


    alternatively you could measure current going into the PSU itself.

    strangely enough, my computer under no load only draws about 20 watts, and it's a P4 1.8ghz

  3. #13
    Low Bitrate 047025n's Avatar
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    6.5A +5.5v
    4.06A +3.3v
    .25A +12V

    Thanks for all your help .. i've got it figured out now.

    My system specs are
    Mini-ATX ECS Motherboard
    2100+ Sempron CPU
    256MB DDR 2100 Ram
    2.5" 40GB Laptop Drive
    Slim DVD-ROM TECH USB adapted
    USB Sound Blaster MP3+
    USB GPS Ritiklan

  4. #14
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    well clearly the CPU is powered off the 5 volt line.

    looks like you're right at about 50 watts

  5. #15
    Low Bitrate 047025n's Avatar
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    Ya thats what i figured and it makes sense since my MB does not have a P4 style connector on it.

  6. #16
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    what do you think my power draw would be?
    its a P3 933 desktop cpu.
    on a dell motherboard with just one atx connector. the only other item I will have is a 30 GB IBM travelstar notebook drive. Would the OPUS 80 watt / M1 90 watt from MP3car.com be sufficient?

  7. #17
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    Quote Originally Posted by soloman02
    what do you think my power draw would be?
    its a P3 933 desktop cpu.
    on a dell motherboard with just one atx connector. the only other item I will have is a 30 GB IBM travelstar notebook drive. Would the OPUS 80 watt / M1 90 watt from MP3car.com be sufficient?

    probably.

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