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Thread: Everything You need to know about your M4 ATX

  1. #31
    Constant Bitrate kibble's Avatar
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    Quote Originally Posted by marc5 View Post
    Can i use the 12v accesories plug in my trunk to connect to the earth and ignition point of the m4?

    Another thing, is there a polarity for the motherboard switch on jumper?
    Yes, if all you're using it for is to turn it on.

    No, there's a small analog switch on the m4 that acts like a relay and just shorts those two contacts together to simulate the switch.
    Kids, don't play with too many knives! -Crack Stuntman

  2. #32
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    Quote Originally Posted by kibble View Post
    Yes, if all you're using it for is to turn it on.

    No, there's a small analog switch on the m4 that acts like a relay and just shorts those two contacts together to simulate the switch.
    much appreciated.

  3. #33
    Variable Bitrate rijk's Avatar
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    Quote Originally Posted by Fox_Mulder View Post
    How do I reprogram my M4 ATX?

    This requires a bit of soldering and electrical know how, if in doubt just send it back to mini-box for them to upgrade the firmware.

    Things you need:
    New Firmware (v1.1 attached to this post)
    WinPic here

    an ICSP (In circuit serial programmer) for the 18F2450 microcontroller, if one of these is not available you will have to build one.
    ICSP, can i use my brainstem for this? http://www.acroname.com/robotics/par...-INT-CONN.html
    http://store.mp3car.com/Brainstem_TT..._p/com-021.htm

  4. #34
    Constant Bitrate kibble's Avatar
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    Quote Originally Posted by rijk View Post
    ICSP, can i use my brainstem for this?
    You wouldn't be able to use that because it's a serial level converter not a programmer.
    Kids, don't play with too many knives! -Crack Stuntman

  5. #35
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    Anyone having problems with their M4 turning the computer back on after it tells it to shut down?

    I've set my PC to shutdown when I turn the car off. No hibernate, no standby. The M4 will shut it down and approximately 1 minute later, it turns it on again. To be sure it doesn't do this, I have to turn the power off to the PC itself.

    Anybody experienced this issue? The M4 is a giant hunk O' junk for me. I"m going to go back to my Carnetix regulator and P120 if I can't figure it out. That combination has worked flawlessly for years.
    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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  7. #37
    Constant Bitrate kibble's Avatar
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    Quote Originally Posted by Bugbyte View Post
    Anyone having problems with their M4 turning the computer back on after it tells it to shut down?
    Reset it, maybe?
    Kids, don't play with too many knives! -Crack Stuntman

  8. #38
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    Quote Originally Posted by kibble View Post
    Reset it, maybe?
    I did reset it with no change in results. However, Enforcer's suggestion to check the accessory line is a good one. For reasons that I will not delve into here, I have two computers in the car, both triggered by the same accessory line, which means I have two PSU's in the car.

    The PSU for one of the computers seems to have failed (it's buried in the dash and I have to dig it out) and that may have caused a short.
    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.
    Want to:
    -Find out about the new iBug iPad install?
    -Find out about carPC's in just 5 minutes? View the Car PC 101 video

  9. #39
    Variable Bitrate rijk's Avatar
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    Quote Originally Posted by kibble View Post
    You wouldn't be able to use that because it's a serial level converter not a programmer.
    oke, thanks

  10. #40
    Variable Bitrate rijk's Avatar
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    is there a way to make the m4 switch on the mobo quicker. when it is set to hardoff and the 5 volt rail is gone, it takes 5 sec before the fan starts to spin.

    When i use an regular powersupply and unpluged from the 220 volt (us 110 volt) plug it in and directly press the on switch it spins up within a second.

    Is there setting in the usb controle sett to speed things up?

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