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Thread: Everything You need to know about your M4 ATX

  1. #151
    High Voltage blk02si's Avatar
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    Where is the red wire going in this pic?
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  2. #152
    Maximum Bitrate jpinkerton's Avatar
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    It's going into the Accessory spot on the rocker switch.

    Edit: Wait, I lied. Those were the pics after I took the rocker out of the equation, that time it's not going to anything:


    And I was using a flat head screwdriver, or a power button (Tried both) to send the "turn on" signal to the Zotac motherboard.

  3. #153
    Low Bitrate sk8rjess's Avatar
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    i just posted this on my old thread but it might help..
    my m4 kept shutting the pc on and off every few seconds. it seems the problem is just the m4, idk if its just my m4 or everyones, but my m4 has done this on 3 differ mobos.

    i just had to hook up a relay through the mobo on/off to send pules until the m4 powers up, then the relay shuts off the signal.
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  4. #154
    Maximum Bitrate jpinkerton's Avatar
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    The motherboard isn't even coming on. I have it hooked to the LCD, keyboard, and optical mouse. I watch the LCD, never blinks on, the keyboard lights never come on, optical light never comes on, and CPU fan never spins up. But with the regular power supply everything works just fine.

    I think it's something I'm overlooking somewhere. I've read through everything and gone over everything but I think it's like proof reading your own paper I'm missing a word somewhere and my brain is just filling it in.

  5. #155
    Maximum Bitrate jpinkerton's Avatar
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    Quote Originally Posted by blk02si View Post
    For installation reference:

    I studied the PC board quite a bit for installing this and noticed a design trait I really didn't like that much. Mounting pads on 2 of the holes are positive (+) flowing current from the primary input. You may notice they have an extra layer of clear insulation on them. I don't like this because if one was to use metal standoffs and tighten it down too much, the IC will short against ground. In my installation I used non conductive nylon standoff's just to be sure. Just though installers should know this since it's not marked anywhere in the manual.
    Where did you obtain your nylon standoffs? I have regular standoffs, and some little red ... I think - cardboard - washers I'm planning to place in between, but wouldn't mind knowing where I could source some nylon standoffs.

    Edit: I found some on Digi-Key's website, but they're more spacers than what I'd think of standoffs.

  6. #156
    High Voltage blk02si's Avatar
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    usually a hardware store like ACE will have them, The ones I use are actually nylon binding posts and I use nylon machine screws on either end.
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  8. #158
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    No that won't work. That programmer is for Atmel microprocessors. The M4 uses a PIC processor. You need a PIC programmer.
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  9. #159
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    overheat issues??

    I just got around to installing my mark II of my CarPC built on the M4 ATX. I benched it for about month prior to installation and all seemed fine. It seems to be fine during my morning commute, however during my afternoon commute when the temperatures are much warmer, the PSU seems to be dropping power to the system. My system temps are around 150F which is a little warm but not unreasonable. I have all the BIOS thermal protections cranked to max or disabled.

    When the PSU does trip, I have to leave it powered off (have a cutoff switch till I'm certain the system is good) for a good 5 minutes before powering it back up. Then it will run for a little while before it drops again. When stopped, I popped the trunk to see what's going on and I hear a high-low klaxon emitting from the PSU.

    Anyone else experiencing this issue?

  10. #160
    High Voltage blk02si's Avatar
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    The M4 manual states if you are going to be running at of near full load forced air cooling is recommended. I would say more than 75% load or about 185w, You're going to want to put a fan over the top of it.
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