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Thread: Cold problems

  1. #1
    Low Bitrate cyrix^'s Avatar
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    Cold problems

    Hey guys..

    Is getting close to winter, and we have got the first days with minus 0C here.

    I am starting to having boot problems when is getting below the freezing point. I just won't boot. I think, it is either the mobo, or the PW-120M power supply...

    Does anyone have a easy fix, or having same issues. Please post your experiences.

  2. #2
    FLAC john1701's Avatar
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    you have to put a on/off switch on the wire that is for your ignition wire on the ps. When you start the car with the switch off, the carputer will not turn on. When the interior of the car is warm enough, turn the switch on to boot the pc. Unless someone else has a better suggestion. I had the same problem last year in NC, temp got to 19F and the pc wouldnt even post.
    The MC of Florida Car PC Meets
    CAR:2001 Ford Crown Victoria
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    The Florida Meets Thread

  3. #3
    Variable Bitrate Tim Lake's Avatar
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    I thought computers liked cold conditions
    VIA M10000
    512Mb RAM
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  4. #4
    Neither darque nor pervert DarquePervert's Avatar
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    It's most likely the hard drive causing your boot problems.
    HDDs have fluid bearings. THey are sitting in oil, basically. When the temperature gets cold enough, that fluid becomes too thick to allow the platters to spin properly, so it won't boot.
    Have you looked in the FAQ yet?
    How about the Wiki?



    Under normal circumstances, a signature would go here.

  5. #5
    Low Bitrate cyrix^'s Avatar
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    Quote Originally Posted by DarquePervert
    It's most likely the hard drive causing your boot problems.
    HDDs have fluid bearings. THey are sitting in oil, basically. When the temperature gets cold enough, that fluid becomes too thick to allow the platters to spin properly, so it won't boot.
    Well, It should boot but then give me an boot error, if i Am correct... It is not very often a HD will get the computer to stall like that.

  6. #6
    Variable Bitrate Tim Lake's Avatar
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    If it is the HDD you could try getting a CF adapter and use CF to hold your OS. The would let the computer start heating up before you access the HDD.
    VIA M10000
    512Mb RAM
    30Gb 2.5" HDD
    Bluetooth, 802.11g, GPS
    Silverstone USB DAC
    Consult (ODB)
    CarTFT K500
    Carnetix P1290
    NLited XP with Road Runner and MapMonkey

  7. #7
    Variable Bitrate Grrrmachine's Avatar
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    So whats the lowest temp people have had their systems running at? Im jsut about to mount a PC in my Benz in Poland, where it gets to -25 C, and this is giving me some worries...

  8. #8
    Newbie kirill.krylov's Avatar
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    I live in Canada and experienced the same problem. Usually an HDD’s (2.5") operating temp rages between +5C to +65C. Temps below 5 and/or above 65 will trigger a safety switch that prevents HDD from spinning.

    I have winterized my PC as follows. I bought cheap USB2.0 carrying case that I feed from PC’s power supply. It prevents voltage spikes during cranking and assures safe shutdown when engine is OFF.

    There are heating pads available on e-bay that RVers use to heat their seats, or other mobile heat pads for pets. Power varies from 15-40W. This is what. I simply wrapped the case around in the heating pad. To prevent HDD from overheating I’ve used a thermostat that works just like a relay, switching power feed on and off when necessary.

    Next step is to make sure you battery does not die (try to leave your heated sets overnight). 25W / 12 volts = 2 Amps. Canadian battery capacity is about 55 Amp/hrs, that will keep be heating pad for about 55/2 = 27 hours (after 27 hours battery is completely discharged). I’ve used solar panel and dual battery set-up separated by bunch of diodes to make sure that AUX battery gets the load and main stays idle. So far it’s been ok

  9. #9
    FLAC jbors's Avatar
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    Try to use ext temp range HDD drives. Fujitsu and Hitachi have them. -20C guaranteed.
    Fujitsu: MHT2020AT
    Hitachi: <need to look>
    Car pc integration with ease
    Car mediacenter

  10. #10
    Low Bitrate cyrix^'s Avatar
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    Quote Originally Posted by jbors
    Try to use ext temp range HDD drives. Fujitsu and Hitachi have them. -20C guaranteed.
    Fujitsu: MHT2020AT
    Hitachi: <need to look>
    As I said, I dont think is the harddrive that is causing the problems. Why should it stall the computer completely ?

    The computer won't boot at all...
    Personally I think is mobo related, but i'm not sure.

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