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Thread: Car-PC

  1. #1
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    Car-PC

    Hi All,

    I am embarking on a car-pc build,

    I have a compaq DC7800 ultra slim pc lying about now this may be a bit to grunty for what I need, but it's what I have.

    It uses a 19.5 Volt 7.2 Amp 135-watt power supply that is in an external adapter to the box.

    I have proper 0 guage power going into a distribuition block for my sound setup so my question is what would be the best/easiest/cost-effective way of powering this box ?

    I was potentially thinking a Laptop DC - DC power supply that would hopefully have the right connector.(The most powerful adapter I can find goes up to 6.0 Amps) Can you suggest alternatives or whether it would be worth following up a DC - DC car PC built adapter that supports 19.5 volts ?

    Apperently it is "We are talking Energy Star 4.0 certification: It uses ~2 watts while it is in S3 sleep, ~1W when turned off, and only 33W at idle (but operating). While compressing video and rendering some images the machine ran a little higher than other machines in its class but it does have a more powerful processor."

    Regards,
    QS

  2. #2
    Fusion Brain Creator 2k1Toaster's Avatar
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    Well cost wise, that would probably benefit from an inverter.

    I know HP and Compaq are the same, but I cannot find any mobo pics of a Compaq DC7800, but I found some HP DC7800. Not sure if they are the same.



    From the looks of that, it has a miniHP ATX connector on it, that a regular ATX PSU can be adapted to fit with some wire cutting and soldering.

    Can you open up the PC and take some PICs of the mainboard?
    Fusion Brain Version 6 Released!
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  3. #3
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    Yah that is not it. It is of a laptop form factor.

    Here it is ....Name:  6645-IMG1155s.jpg
Views: 464
Size:  53.3 KB

    I think an inverter may be the go, but it's just so messy + the inherent benefits if the inverter ever gets wet lol I think I would get a nice zAP !

  4. #4
    Fusion Brain Creator 2k1Toaster's Avatar
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    where does the power go in that?
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  5. #5
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    Quote Originally Posted by 2k1toaster View Post
    where does the power go in that?
    Name:  laptop7800ultraslimpower.bmp
Views: 421
Size:  900.1 KB

  6. #6
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    Any idea's anyone ? Should I sell and buy a proper case etc ?

  7. #7
    Fusion Brain Creator 2k1Toaster's Avatar
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    I would ditch it completely. Set it up as a server or HTPC in your house.

    Buy a proper CarPC setup.
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

  8. #8
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    What about a Carnetix CNX-P1900 with a spliced plug to fit into the PSU plug slot ? It says it supports 6.75 AMPS at 19+ Volts... Will this work ?


    EDIT

    Even better the CNX-P2140 will do exactly what I need Unless you can see a reason why not ?

  9. #9
    Fusion Brain Creator 2k1Toaster's Avatar
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    The Carnetix will work, but it doesnt seem like a CarPC friendly computer. There is no reason why it wouldnt work, but you are really locking yourself into that hardware.
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

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