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Thread: Powering a PC, Poweroff??

  1. #1
    Newbie
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    May 2006
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    Powering a PC, Poweroff??

    I am new to this so sorry if the question is excessively noobish. I have just brought a 87 Landcruiser which I am planning on kitting with a PC(satnav, MP3 and divx) and a 7" touchscreen and Windows Media center.

    I was thinking of using one of these. Cheap, small and quiet. (Compaq Ipaq micro desktop PC)
    http://cgi.ebay.com.au/A-Complete-Se...QQcmdZViewItem

    and interfacing with this on the dash
    http://cgi.ebay.com.au/8-VGA-TFT-LCD...QQcmdZViewItem

    Now the only problem is what do you guys do with powering off the car. Do you chuck the PC in to standby and hope the battery doesn't go flat in a few days or use a battery powersupply to safely shut the pc down or cold turkey and yank the power supply out. Eg hard poweroff.

    Any help and suggestions would be great.

  2. #2
    Low Bitrate com2soft's Avatar
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    Sep 2006
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    i think the compaq is AC powered so you need an inverter to drive it. my previous inverter set up was power it from distribution block (so ACC will kill the inverter power). and you need a switch to manual start up and shut down pc.

  3. #3
    Neither darque nor pervert DarquePervert's Avatar
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    An inverter is the simplest and least expensive route.
    There may be other options, though, depending on the system.
    If the motherboad is a standard ATX, I would recommend an all-in-one DC-DC ATX power supply. There are several models in the store here. I personally use a DSATX unit, and am very happy with it, butit's probably overkill for your setup.

    If the motherboard is not ATX-compliant you may be able to use a smart regulator like one of the Carnetix models, also available in the store here.

    I use Hibernation mode, where it writes the system state to hard drive. My PSU allows sufficient time for the PC to hibernate, then cuts all power. A startup/shutdown controller could handle this function for you. The better DC-DC PSUs have this feature integrated.

    I recommend checking out the FAQ Emporium here: http://www.mp3car.com/vbulletin/the-faq-emporium/

    Do lots of reading. There is much to learn.

    And com2soft:
    1 - All PCs are AC powered by default.
    2 - A distribution block doesn't guarantee that ACC will kill power. It all depends on how it's wired.
    3 - Depending on the internals of this machine, a SSDC could be used, negating the need for a power switch.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  4. #4
    Low Bitrate com2soft's Avatar
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    Sep 2006
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    71
    Quote Originally Posted by DarquePervert View Post
    An inverter is the simplest and least expensive route.
    There may be other options, though, depending on the system.
    If the motherboad is a standard ATX, I would recommend an all-in-one DC-DC ATX power supply. There are several models in the store here. I personally use a DSATX unit, and am very happy with it, butit's probably overkill for your setup.

    If the motherboard is not ATX-compliant you may be able to use a smart regulator like one of the Carnetix models, also available in the store here.

    I use Hibernation mode, where it writes the system state to hard drive. My PSU allows sufficient time for the PC to hibernate, then cuts all power. A startup/shutdown controller could handle this function for you. The better DC-DC PSUs have this feature integrated.

    I recommend checking out the FAQ Emporium here: http://www.mp3car.com/vbulletin/forumdisplay.php?f=106

    Do lots of reading. There is much to learn.

    And com2soft:
    1 - All PCs are AC powered by default.
    2 - A distribution block doesn't guarantee that ACC will kill power. It all depends on how it's wired.
    3 - Depending on the internals of this machine, a SSDC could be used, negating the need for a power switch.

    thanks! Dar. learned

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