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Thread: CarPC Won't boot in cold

  1. #1
    Newbie MusicMonkey5555's Avatar
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    Unhappy CarPC Won't boot in cold

    I have notice since winter hit my carpc won't boot, the fans run are running, but nothing comes up on the screen.

    If I unplug the power then start up the car and have the heater on for a while, and then plug it in sometimes it boots and sometimes not. Sometimes it will start to boot, but not get past post (doesn't register the ram or processor, just freezes on the start of the black screen with some text at the top). If I then unplug it after a bit (the power) and try again, it usually starts up fine then.

    This seems to only happen when it is super cold out.

    Any ideas about what is going on?

    Never had a pc in that cold of an environment, but they seem to do fine in cold so it is a bit confusing. Only thing I can think of is the power supply isn't working correctly because of some expanding or something and so things aren't getting enough power. Also suppose there could be some moister when it is colder, but my car doesn't seem to be moist. It is pretty new.

    All the carpc and car info should be in my signature or my project page, but here is the power supply:
    M2-ATX 160W Intelligent DC-DC PSU
    and here is the case:
    VoomPC-2
    And feel free to ask any q's.

    Thanks in advance for any help and sorry if there is already a post on this, but searched for several things and nothing came up.
    2007 Ford Focus
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  2. #2
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    Fwiw

    I had a similar problem for a couple of months. Couldn't predict when it would or wouldn't boot, but the computer was getting power, just wouldn't boot most of the time until the car was "warm." Turns out my battery was going bad. Didn't know that until it died, but once I replaced it all was good. I suspect what was happening is that my battery was weak, and wasn't supplying enough voltage. So... check your battery....

  3. #3
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    Bugbyte's Avatar
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    Not your standard HDD problem with cold since you are SSD. I've heard of mobo's having temp sensors that prevent boot if out of operating temp specs. It can also be the power supply. What are you using?
    Quote Originally Posted by ghettocruzer View Post
    I was gung ho on building a PC [until] just recently. However, between my new phone having internet and GPS and all...and this kit...Im starting to have trouble justfiying it haha.
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  4. #4
    MySQL Error soundman98's Avatar
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    Quote Originally Posted by bugbyte
    Not your standard HDD problem with cold since you are SSD. I've heard of mobo's having temp sensors that prevent boot if out of operating temp specs. It can also be the power supply. What are you using?
    he must've added it as you were posting

    Quote Originally Posted by MusicMonkey5555 View Post
    All the carpc and car info should be in my signature or my project page, but here is the power supply:
    M2-ATX 160W Intelligent DC-DC PSU
    and here is the case:
    VoomPC-2
    And feel free to ask any q's.

    Thanks in advance for any help and sorry if there is already a post on this, but searched for several things and nothing came up.

    i guess a easy way to confirm if it is the motherboard or power supply would be to use a ac-dc power supply while everything is nice and cold..

  5. #5
    Newbie MusicMonkey5555's Avatar
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    I'
    ve heard of mobo's having temp sensors that prevent boot if out of operating temp specs.
    I will check and see what the operating temps are on my Motherboard and if it has such a feature. Then try the suggestion:

    i guess a easy way to confirm if it is the motherboard or power supply would be to use a ac-dc power supply while everything is nice and cold..
    Just because that would be a little tricky with what I have. Suppose I could leave just the power supply or just the rest of it in cold car for a night and take in the other then put it all together in the morning in the cold. At that point one thing should be warm and the other still cold (so long as I didn't touch much hooking it up).

    Definitely have some things to try now. Thanks so much for all the input.

    Oh and about the battery I will check this as well, but I am pretty sure they check the battery when I get my oil changed and I just did that a week or so ago. Probably actually do that first.
    2007 Ford Focus
    Project Page
    Software - Win7, Centrafuse, Firefox, MediaMonkey, Trillian
    Hardware - Intel X25-M 80GB SSD , VIA C7, Jetway J7F5M-VDE, Kingston 1GB RAM, Preassembled 2Din Frame w/7" Lilliput EBY701
    Planning: 85%
    Parts: 95%
    Install:75%

  6. #6
    Maximum Bitrate jmullan99's Avatar
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    Just wondering if you determined the issue and resolved it?
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  7. #7
    Newbie MusicMonkey5555's Avatar
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    Quote Originally Posted by jmullan99 View Post
    Just wondering if you determined the issue and resolved it?
    I didn't. I actually had an amp go out on my and ended up getting a new one along with a new stereo: the Parrot Asteroid Smart and am loving it. There are a couple stock Android things I wish it had, but the custom volume and forward/back controls are great so no sense flashing my own Rom. It also supports my full 160GB iPod which is one big issue I have with most car Stereos.
    2007 Ford Focus
    Project Page
    Software - Win7, Centrafuse, Firefox, MediaMonkey, Trillian
    Hardware - Intel X25-M 80GB SSD , VIA C7, Jetway J7F5M-VDE, Kingston 1GB RAM, Preassembled 2Din Frame w/7" Lilliput EBY701
    Planning: 85%
    Parts: 95%
    Install:75%

  8. #8
    Maximum Bitrate jmullan99's Avatar
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    Sounds interesting. Thanks for the update.
    ZOTAC G43ITX-A-E 2.5ghz Core i3 2GB 160GB SSD
    Win7 Ultimate - OpenMobile - Directed HD - Wifi
    OMMaps + MS GPS Puck - WiFi via LTE Android phone
    2 Zones - Matrix Orbital LCD - Arduino - Build Pics

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