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Thread: M2-ATX Problem - Fan runs but does not boot !

  1. #61
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    Quote Originally Posted by Wiredwrx View Post
    These ARE NOT the same issues. Please post your questions in a new thread. Remember, we will need a bunch of information to help when you post.

    Michael
    "The exact behaviour is:
    CPU Fan runs,
    No VGA signal.
    Turn ignition off - CPU fan keeps running. (I have to pull teh power wires out of M2 to shut it down)." - Original poster

    Odd, that's not same issue? He says it boots up fine, later he trys to boot up and get's the same problem.

  2. #62
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    Wiredwrx's Avatar
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    Quote Originally Posted by caldvn View Post
    "The exact behaviour is:
    CPU Fan runs,
    No VGA signal.
    Turn ignition off - CPU fan keeps running. (I have to pull teh power wires out of M2 to shut it down)." - Original poster

    Odd, that's not same issue? He says it boots up fine, later he trys to boot up and get's the same problem.
    You haven't followed the whole thread.

    The OP stated first, it wouldn't boot AT ALL, but had spining fans and no video, it was a timing issue that is known about a couple of MB, the commels and the Epias. You have not mentioned what MB you are using. This was corrected. There is a resister that needs to be changed, either by the owner or with a swap of the PSU itself.

    Then he claimed he was having "mysterious" rebooting of his MB AFTER the resister change.

    So, now, since you stated IT DOES BOOT, but then you lose VGA, that is a DIFFERENT PROBLEM. See, his didn't boot EVER, but he has spinning and no VGA. You said yours booted. And, you are not having Mysterious Rebooting. Different problems

    You have not provided anything about your system. Not the MB specs, CPU, peripherals, how you wired it, your jumper settings, NOTHING.

    Now, start a new thread, post all the information you can (what is a "molex connector") and I am sure someone will try and help you, perhaps even me.

    Michael
    ...I love the French language...especially to curse with...Nom de Dieu de putain de bordel de merde de saloperies de connards d'enculés de ta mère. You see, it's like wiping your *** with silk, I love it.

  3. #63
    Newbie MaXimaN's Avatar
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    I've read through this thread (although skipped some of the flaming ) and I didn't see any mention of trying the M2 without the LCD panel powered from the M2's 12V line? If I missed it, I apologise.

    First of all, powering the LCD monitor from the 12V output of the M2-ATX is not a very good idea with your setup. The current available on the 12V line from the M2 is limited to 8A peak and your Core Duo setup will undoubtedly be drawing a large chunk (if not all) of the available current at bootup as the processor is running at full power at that point. Use a separate PSU for your display wherever possible.

    The current drain added by the monitor could well be affecting the 12V level on the motherboard and that's a sure-fire way to get unpredictable effects. As a test, go into the Health Status (or equivalent) page in the BIOS and watch the 12V line monitor whilst powering your display on and off. If you see any big fluctuations there, or a consistent drop in voltage while the display is on, then you can be assured that this is the cause of your problems.

    A good rule of thumb with testing is to try to get to a known working environment. Avoid using dumb ATX mode as this is not the configuration you want to end up using anyway and will most likely lead you on wild goose-chases trying to analyse problems that won't be present in your actual in-car setup. Try starting up with as few attached peripherals as possible: regular PC monitor (not your 12V powered screen), RAM, HDD, keyboard, mouse and nothing else. If that behaves as it should, start adding the peripherals back one by one, testing the setup as you go along. Finally, add your 12V screen to the setup and test again.

    Your "PWR-ON after PWR-FAIL" BIOS setting absolutely needs to be set to "OFF". The M2 handles the power-up procedure upon power-on - not the motherboard - by being the automated equivalent of someone pushing the power button on the front of a regular PC. If you have this BIOS setting on, then it is undoubtedly the cause of the PC powering back-up after being shutdown. I think someone else in this thread was trying to SCREAM THIS AT YOU in their post.
    System:
    Jetway J7F2 2GHz C7 Mainboard
    1GB DDR2-533 RAM
    120GB Hitachi 2.5" 5400
    VoomPC case with M2-ATX PSU
    Buffalo Airstation 54G wireless with ext. antenna
    CompactFlash Bluetooth.

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