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Thread: How do you guys keep things under 150 Watts

  1. #1
    Low Bitrate homchz's Avatar
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    How do you guys keep things under 150 Watts

    Motherboard = 25
    Processor = 68
    Memory = 10
    USB Devices = 10
    Video (Integrated into MB) still figure = 20 (assumption)
    Keyboard & Fan = 6
    DVD Drive = 25

    I am at 163 before the monitor.

    How do you guys do it? Or am I calculating wrong.

    It appears The inverter is the way to go but I have another question?

    Has anyone ran an OPUS before a Power Inverter? Though I have no idea what the watt requierments of an Inverter is, but if I undertand what I have been reading, the Opus would send 12 soild volts to the inverter as well as act as the start up and shutdown controller, or is that a wrong assumption as well?

    Thanks,
    Josh

  2. #2
    MySQL Error scott_fx's Avatar
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    most use mobile chips which are lower power consumption chips. you can run fans off of unreuglated power, same with the xenarc. (you forgot the hard drive as well, but that could be a 2.5" which runs off of 5 volts)
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  3. #3
    Constant Bitrate CapitaineFritz's Avatar
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    I run my motherboard, a 3.5HD, my monitor, my rearview camera, etc. via a 90 PSU The secret is the loowwww power consumption Via Epia M10000 I have
    Via Epia M10000 / 512 DDR / 10gigs 3.5 HD / M1-ATX / Innovatek 7" TS Screen
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  4. #4
    MySQL Error scott_fx's Avatar
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    oh yeah.... well that too I orig went the micro-atx route because i thought it was going to be less expensive with better performance. it turned out to be more headaches then i hoped and i ended up selling the opus 150, tossing the mobo and going with the tried and true (though slower) m10000 and 90w m1-atx. I'm really happy with the performance in the car environment.
    New System in progress:
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    Zapco Ref 500.1 ~ 12" tc-9
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    Transflective Xenarc

    My Car Pc Install
    My Boat Pc worklog

  5. #5
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    Bugbyte's Avatar
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    Your processor uses more juice than my entire system (screen excluded). I'm under 60 watts.

    You can see why people go with the Via's, and as long as you aren't running power apps (I can run frontend, GPS, voice recognition without problem), then you'll be fine.

    Note I don't watch videos in my car, that's what my house is for. So, it's unimportant to me whether the Via has choppy DVD performance or not. I understand that the M12000 doesn't have video issues.
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  6. #6
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    Pentium 4's and other powerful chips are power hungry. Mobile chips or a VIA board are optimized for low power conditions. 'Value' chips such as the AMD Semperon stand somewhere in between the two.

  7. #7
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    i'm in the same situation cos i'm scavenging my carPC parts from a spare computer i have, its an old athlon 1.3, with corresponding full ATX board. and like you i can run into the 160s or 170s just on basic stuff

    although i read that those figures are gonna be max figures which you won't be running into just playing a few mp3s
    one website suggested your power supply only needs to cover about 70% of the figures above, which puts you in range of the opus 150, well thats what i'm gonna try first anyway

  8. #8
    Maximum Bitrate Frankino's Avatar
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    the secret is to keep cpu consumption low.. if you want a microatx system go for a mobile athlon, at 1ghz they are very low consumption cpus
    Peugeot 206 1.4 HDi

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    8" Lilliput TS LCD

    100% installed and working :D

  9. #9
    Variable Bitrate 12Vsystems's Avatar
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    You have a CPU overkill here. I'm not sure what your planning on doing but even if you get the system up and running keeping the system cool while it uses 150 watts will be difficult. Most of our setups use under 60 watts.

    VIA or P3 mother board with CPU. 20-30 Watts.
    2.5" Hard drive 5 Watts
    Slim Line CD-Rom 10 Watts
    USB Devices 10 watts.

    The less power you use the less cooling you will have to do.
    Spent all my money on carputers now I have to work a real job.
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  10. #10
    FLAC Chairboy's Avatar
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    BTW, my M10000 plays movies, including DivX, fine.
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