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M4-Atx Problems... Anti-thump still thumping and more...

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  • M4-Atx Problems... Anti-thump still thumping and more...

    I've finally gotten my system completely wired up and 100 % functional, but my power supply (m4-atx) seems to be acting strangely and I'm hoping you guys can help me out.

    The main problem I've come across is that the amplifier anti-thump is activating too soon and releasing too late. The amps turn on right with the computer causing a thump, and stay on for the full minute after the computer has shutdown, causing another thump. I have the board set in p1 mode (1st switch down) and my firmware revision is 1.1 (according to the mini-box utility)

    Second, I've tried reseting to factory defaults by bridging jp1, following the manual; I don't get any response from the board (No "rapidly flashing led")

    Thirdly, I've tried messing with the thump delay in the mini-box utility and it doesn't seem to have any affect either, I've told it to send the changes but there doesn't seem to be any indication/verification that they've sent.

    Lastly, the voltage readings in the utility seem to be wrong as well, it tells me that my ignition voltage is 16v and my 12v line is 18V but in reality both are at 12.07, measured directly at my m4-atx.

    Are any of these common problems with the m4-atx, or is it likely that I have faulty board? Also, could there be something I may have messed up that's causing it to act this way?

    Thanks in advance,

    Silent3xecution

  • #2
    Silent,
    I haven't verified the anti-thump problem, but I have the same issue with the utility not reporting the correct voltages. I have an HP lab supply that can deliver 12v at 50 amps all day long. Its panel meter shows 12v, two Flukes and a Simpson meter say the same thing. The mini-box application says 18v. I'm getting tired of all these annoyances. And of course, mini-box's tech support is bending over backwards to help......yeah, right. I have emailed their tech support and Laci and got nothing in response.
    -Jim
    Nipomo, CA

    Comment


    • #3
      It would be nice if company's released products that actually worked like they should....and didn't go into hiding when they don't >.<


      You say you haven't verified the anti-thump problem, is that because you don't use the anti-thump or do you mean that it is working fine for you?

      Comment


      • #4
        The plan is to use the anti-thump when the project is done, but I don't have it hooked up to anything right now. I guess I could scrounge an amp to try it or maybe just hang another voltmeter on the thump connector. It should show 12v after the computer has finished powering up when it works correctly. If 12v is there too soon, then we know it's not working as described.

        Another thread is showing version 1.2 of the firmware has been released. Maybe that fixes it, but again, no solid info on how to update the unit short of building a PIC programmer.
        -Jim
        Nipomo, CA

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        • #5
          Yeah, it would be nice if it was capable of being upgraded through the USB connection.

          I had to make myself the programmer that Fox put up the schematic for on another thread. I made it really tiny using nothing but smd components. First time I try making a board completely out of smd's! If anyone is interested in making your own, I'll post up the foil pattern so you can make your own. I do have to fix one thing on it though before I put it up.
          Kids, don't play with too many knives! -Crack Stuntman

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          • #6
            I noticed a v 1.2 in one of the screenshots as well, but the mini-box site only shows the changelog up to 1.1...hmmmm. I'd love to get my hands on 1.2 if anyone here has it.

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            • #7
              I just looked at the changelog a few minutes ago and it was showing at the very bottom:

              06/06/2008 Firmware 1.2: Introduced +750ms wait time between 5VSB on and ON/OFF pulse,value can be changed by user through USB
              Kids, don't play with too many knives! -Crack Stuntman

              Comment


              • #8
                I'm not sure the 750ms is gonna fix the thump problem unless the changelog doesn't mention the other fixes. Depending on the speed of your system, I would say the anti-thump shouldn't kick in until at least 5-10 seconds AFTER you have the Desktop. Since every system boots at different speeds, it doesn't seem possible they could hard code a number in there and have it work for everyone.
                We need the software. Does anyone from mini-box even visit this forum? I don't want to flame them or anything, but I really feel like I've been left out to dry on this power supply.
                -Jim
                Nipomo, CA

                Comment


                • #9
                  It doesn't even wait at all to power on the amplifiers, nowhere near being at the desktop. It really doesn't even have to wait that long, I only get a thump as soon as the computer turns on, and no more.

                  I swear 1.2 wasn't there the other day! Am I just blind or is there no link for 1.2 on the site? I see the applications but not the firmware, which makes no sense whatsoever.

                  Comment


                  • #10
                    Yeah, there's no link to the firmware, heck, I didn't even see one for the 1.1 fimware. I got it from here. It's funny though that the screen shots on the mini-box site show 1.2 on them.
                    Kids, don't play with too many knives! -Crack Stuntman

                    Comment


                    • #11
                      Phuz should give the ppl the software or put it up so ppl can just dowdload it. F mini-box and there dam n tech support. I sent back 2 m4 cause the dam n amp anit-thump. Ever time I call...Frank tell me the tech guys are out doing other shi t.

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                      • #12
                        I put the voltmeter on the anti-thump connector and yup, I get 12v almost immediately after power up. Grrrrr.

                        This time I fired up the utility that mini-box provides. It still shows 18v coming into the unit even tho I know it's 12. But I started playing with the other portion, where you can "Send Message" to the unit. You select a parameter and it shows what it is. If you want to change it, type in the new value and hit the "Send Message" button to update. This is, of course if you have the USB cable made up and connected. Amazingly enough there is a setting for anti-thump and the default is 3000 ms(3 seconds). I changed it to 15 seconds and "sent" it. It accepted the command. I then powered off.

                        Guess what? It works.....well, sort of. It still puts out 12v a few seconds after the ignition on signal, drops to zero, then waits the 15 seconds and puts out 12v again. I don't know if the initial power on would cause any amplifier thumps or not. When you remove the ignition signal, the computer shuts off/hibernates, waits another 15 seconds and then kills the 12v to the amp. I don't think this is right because when Windows shuts down, it generates some thumps at power off.....while the amp is still on. Anyone else want to verify what I'm seeing? There are a whole bunch of other settings you can change, but most I'm currently not that interested in. The anti-thump setting affects both startup/shutdown. I'd like to see those broken out separately. When shutting down, I think I'd like the amp to die right away, long before Windows starts doing its thing.

                        Maybe 1.2 or later versions can resolve these anomalies. I'll try to fiddle more later in the week and see what kind of results I get.
                        -Jim
                        Nipomo, CA

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                        • #13
                          I've been wanting to take a voltmeter to mine, but I've been too busy. I'll try and do some testing tonight...it's looking like mine isn't faulty after all, rather they all are. >.<

                          Comment


                          • #14
                            I've done some testing with mine now, I have about the same results as you, jimmler. Even though I told the utility to change the anti-thump delay to 10sec, the amps came on at about 16sec, so you may want to try changing your timing to something else to see if it's actually working or you just happened to pick the number that the supply always uses.

                            Here's my startup breakdown

                            Ign on - 0

                            Amps on - 3

                            Computer on - 5 Thump

                            Amps off - 7

                            Amps on - 16

                            It just occurred to me that may not be 100% true, the "amps on/off" is actually the sense signal on/off, the amps may stay on the whole time, i'm not sure if they've got they hold themselves in the on position for a set amount of time after receiving a signal, I'll have to check that.

                            Comment


                            • #15
                              Well, we've verified on our respective units that it's not working as advertised. How do we get mini-box to do anything about it? As mentioned in other posts, their tech support has been completely unresponsive as far as any of MY requests have been concerned. I'm getting really tired of being a beta tester.
                              -Jim
                              Nipomo, CA

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