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Thread: 25F outside

  1. #1
    Constant Bitrate digeratix's Avatar
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    25F outside

    Well I now know that my carputer will not boot when its in the neighborhood of 25F outside. It just BSOD'd this morning. TOO COLD!
    I have it mounted in the trunk.

    I was thinking that since I have rear air in my car, I migh possible route a tub to the trunk to help warm it and cool it if needed. It can be controled on/off from the inside.

    I wouldnt directly point the tube at the carpc either, I am thinking of the tube entering the trunk from the opposite side the carpc is on.

    Any thoughts on this.

  2. #2
    Variable Bitrate walstib's Avatar
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    One thought... Hot air + cold metal = condensation.
    Carputer Project Status:
    0% - Mobo died on 2/17/08
    Check out the worklog for my '01 Pathfinder.

  3. #3
    Variable Bitrate Phatsacks's Avatar
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    25F shouldn't make anything stop working in your computer...

    I thought most components ranged on the -35c (-31F), and only our brothers and sisters out in the coldest of cold areas had this problem?

  4. #4
    Constant Bitrate digeratix's Avatar
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    Specs on my hdd.

    Operating:
    Ambient temperature: 5 to 55 C = 41F to 131F
    Shock (half sine wave): 300 G / 2ms, 160G / 1ms

    Non-operating:
    Ambient temperature: -40 to 65 C = -40F to 149F
    Shock (half sine wave): 1000 G / 1 ms

    I have had in working in 35F before, but today was too cold.

  5. #5
    FLAC
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    25F isnt that cold. Does your system POST? How far does it get into the boot process before you get a blue screen? Is it the windows blue screen, or is it a blue screen from the BIOS.

  6. #6
    FLAC greatwhite's Avatar
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    Only problems I've ever had is my cmops battery dieing in the cold or the comp needing a restart to get things up to temp and spinning. I''ve never had a cmplete refusal to start up.

    Gets down to around -20 to -25 C here....................
    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

  7. #7
    Fusion Brain Creator 2k1Toaster's Avatar
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    Quote Originally Posted by digeratix View Post
    Specs on my hdd.

    Operating:
    Ambient temperature: 5 to 55 C = 41F to 131F
    Shock (half sine wave): 300 G / 2ms, 160G / 1ms

    Non-operating:
    Ambient temperature: -40 to 65 C = -40F to 149F
    Shock (half sine wave): 1000 G / 1 ms

    I have had in working in 35F before, but today was too cold.
    wow that a ****ty hard drive
    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
    Constant Bitrate digeratix's Avatar
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    Quote Originally Posted by 2k1Toaster View Post
    wow that a ****ty hard drive
    Its not too ****ty, its only the most popular laptop hdd there is.
    Whats your hard drive and whats the specs?

    I think they are all pretty much like that.
    I got to reading this ...
    http://www.mp3car.com/vbulletin/faq-...ct-car-pc.html

    It was a BSOD after post and during the black and white progress bar at the bottom.
    I have read about it on these forums before and didnt realize that temp would be such an issue in the trunk but appearantly it is.

    Dont forget I'm talking Fahrenheit not Celsius

    As far as I know the only harddrives that can handle extreme temps is made by hitachi and its the Endurastar line.
    (-22 to +185 degrees Fahrenheit)

  9. #9
    Fusion Brain Creator 2k1Toaster's Avatar
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    I just have some crappy Western Digital (3.5") and it goes to -20C without a problem (trunk, not cabin anymore). Also goes past 40C.
    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

  10. #10
    Fusion Brain Creator 2k1Toaster's Avatar
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    Also Fujistu makes a "rugged" drive that advertises -350 to +85C which I believe is military spec.

    http://www.fujitsu.com/global/servic...mhw2040ac.html

    Also works up to 4000m which is pretty good for a regular drive. Only 1 place I can get to with my car over that, and that is the top of Pikes Peak (14000ft+ mountain)...
    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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