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Thread: Getting Wifi working in -40C temperatures

  1. #11
    FLAC
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    Its such a hassle to build heaters and having to plug it in each time I leave my car. I also dont think I would sleep knowing that there is a heater being plugged into my car (fire hazard).
    I would prefer to use components that just work in these environments. So far, I know that hard drives and lcd screens will encounter issues in low temperatures. I am not sure what other components will fail to operate this winter.

  2. #12
    Maximum Bitrate BarryWoods's Avatar
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    Quote Originally Posted by nobb View Post
    Its such a hassle to build heaters and having to plug it in each time I leave my car. I also dont think I would sleep knowing that there is a heater being plugged into my car (fire hazard).
    I would prefer to use components that just work in these environments. So far, I know that hard drives and lcd screens will encounter issues in low temperatures. I am not sure what other components will fail to operate this winter.
    The heater that I use has an overtemp switch in it. If it gets too hot, it shuts down. It's done that a couple times on me, the fan froze. If you can get a solid state hard drive, then you won't have to worry about that. I've seen some of the guys here booting their pc's from compact flash, that would work pretty well too. Do that with an external usb2 or firewire drive for music, that way it comes inside with you. You'll still need to preheat the screen, either with the car's heater, or it's own. The cold shouldn't really hurt it, it will just look funny for a while until it heats up.
    Failure is not an option....



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  3. #13
    FLAC greatwhite's Avatar
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    Quote Originally Posted by nicksmurf111 View Post
    if you have a engine block heater already, then just wire it like BarryWoods. Install heating wire in your computer case and a temperature switch to turn it off at your preferred temperature. I'm not sure if anyone is still worried about condensation issues. I remember when we first started, everyone was freaked out about it.
    Brother, at -40 c, there's not enough moisture in the air to worry about.

    9 years in the prairies (anywhere down to -50c and the windchill drops it to -70's for people) taught me that!

    Quote Originally Posted by nobb View Post
    Its such a hassle to build heaters and having to plug it in each time I leave my car. I also dont think I would sleep knowing that there is a heater being plugged into my car (fire hazard).
    You live in Calgary and you don't plug in the car in winter?!? You're braver than I................. When I lived in The 'Jaw, winter came, the car got plugged in all the time.
    For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.
    Leonardo Da Vinci

  4. #14
    FLAC
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    Well I plug in my car at night, but not during the day when I am at school (no plugs). And by fire hazard...I mean a heater that you built yourself. I actually did build a heater for my lcd screen and I wouldnt trust that to run overnight. I have pics if anyone is interested...you can see how big of a mess it looks.

    I am also looking to upgrade my screen due to temperature issues. So far, this screen looks most promising (too bad its not out yet):
    http://dynamixcomputers.com/dynamix_...uchscreen.html
    What do you guys think? Its LED backlight, so it doesnt suffer from dimming issues as with ccfls. Its even rated at down to -20C. I think that is the lowest Ive seen in a screen so far.

  5. #15
    Low Bitrate kazzxtrismus's Avatar
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    why not mount it under the dash and cut a hole in the heater duct work.
    you coould even get a bezel / adapter and put it in the hole and run a piece of tube to the screen.

    i know on some cars this would be a nightmare as they dont leave room for a breeding pair of fruit fly's but at least its an option.

    you gotta warm up the car anyway....

    im jus toutside of toronto and we get -40 1nce or 2ice a yr too...so nowhere near you guys..but still too cold for a carpc.

    maybe one of those pipe heaters on the under-dash reinforcement?
    then mount the mobo case on it?
    it'll plug in like a block heater?!?

    other than that its goona haveto be a space heater AND a removable HDD at least.

  6. #16
    FLAC
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    argg...it sucks to have to worry about cold weather problems. I dont want to worry about heaters and stuff because those are not instantaneous. Id rather my carpc be able to just turn on and work like my radio. As much as I want to go headunitless and have a neat install like everyone else, I just dont think carpc technology is reliable enough yet for me when it comes to low temperatures.

  7. #17
    Low Bitrate kazzxtrismus's Avatar
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    you might be right but ehh it is canada.

    maybe an in-dash that pops out?..kinda like a headrest setup?

    the mobo shouldnt be a prob....
    just get a USB and put a port in the console or something...
    or make a little box w HDD and all the other stuff...unplug like 2 of those older really wide printer cables that have been re-pinned and wired to match the stuff in the box??
    thats gotta be like 120 pins but hay its fast easy and warm!!
    06 Altima..SER front bumper.
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  8. #18
    FLAC
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    I do have an indash right now, and it doesnt work in the cold. I think going with a fixed monitor is best for those who want a durable carpc, regardless of whether its going to be in the cold or not. My instinct is that such extreme temperatures cant possibly be good for the plastic gears. I actually dont plan to go HUless for atleast a few years (I will completely redesign and start from scratch). For now, ill just stick to keeping the carpc off in the winter and using my headunit + paper map.

  9. #19
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    I live in Ottawa, Ontario, Canada and, although most winters arent SUPER cold, we do get the occasional -30 or so day. Having said that, the only real troubles I've experienced with my carpc is the LCD monitor being EXTREMELY washed out until I get the cabin temperature back up to a comfortable level. Here's a bit of reading for everyone with regards to LCD's and cold temperatures :


    temperatures affect the viscosity of the liquid-crystal (LC) fluid suspension. At lower temperatures, the LC thickens and requires more voltage to activate the crystals. Conversely, at higher temperatures, less voltage is needed to create the display.

    On-board temperature control circuitry has been one solution offered by LCD manufacturers. A driver IC with integrated temperature compensation circuitry reduces the total number of components in the device.

    LCDs with operating temperatures of -30C to +80C (or greater) accommodate designers in automotive, aerospace, avionics, and other industries where LCDs must perform in demanding environments. Some manufacturers supply LCDs with an integrated heater to control the LC temperature, ensuring optimum display performance.

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