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  • DC-DC Power Supply...

    I just posted this in chat, thought I'd post it here as well:

    [16:42:44] <Memphetic> hey guys, has anyone ever modified a standard computer power supply to accept the DC current from the car battery?
    [16:42:48] <Memphetic> my DSATX has never worked
    [16:42:54] <Memphetic> and I use an inverter and a standard power supply
    [16:43:15] <Memphetic> but I'm sure that power loss is being created due to inefficiency in the conversion, plus it's dumb to go DC to AC to DC.
    [16:43:47] <Memphetic> not to mention that my inverter has about had it, and makes the most annoying beep sound known to man from time to time

  • #2


    wtf?
    Fusion Brain Version 6 Released!
    1.9in x 2.9in -- 47mm x 73mm
    30 Digital Outputs -- Directly drive a relay
    15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
    Buy now in the MP3Car.com Store

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    • #3
      wtf what?

      Comment


      • #4
        I dont get it.

        1) It is more hassle than it is worth, so not to my knowledge
        2) If your DSATX doesnt work, send it back for repair. Many people use them and they work perfectly. Could be anything from a defective unit to PEBKAC
        3/4/5) Yes it is inefficient. The beep is probably overcurrent protection because you bought the cheap kind.
        Fusion Brain Version 6 Released!
        1.9in x 2.9in -- 47mm x 73mm
        30 Digital Outputs -- Directly drive a relay
        15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
        Buy now in the MP3Car.com Store

        Comment


        • #5
          I sent it back a long while ago and he sent it back and said it was working. I plug it in, and when it's not connected to the mobo, it has a red light so I assume it's running fine, but the moment I connect the motherboard power cable, it goes into three blink fault state.

          Comment


          • #6
            Originally posted by Memphetic View Post
            I sent it back a long while ago and he sent it back and said it was working. I plug it in, and when it's not connected to the mobo, it has a red light so I assume it's running fine, but the moment I connect the motherboard power cable, it goes into three blink fault state.
            Well if your inverter and your DS-ATX are not giving enough power, perhaps you need to scale down your machine.

            You havent even said what you are trying to run.
            Fusion Brain Version 6 Released!
            1.9in x 2.9in -- 47mm x 73mm
            30 Digital Outputs -- Directly drive a relay
            15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
            Buy now in the MP3Car.com Store

            Comment


            • #7
              I don't remember the specs, but the DSATX didn't even work when plugged into an old old machine that had like a 233 mhz processor. three blinks.

              Comment


              • #8
                the only peripherals attached are two hard drives (one laptop and one standard size).

                Comment


                • #9
                  Usually people give their CPU when listing "specs".

                  And if you got the 3 red blink all the time then perhaps it is faulty. I am no dsatx expert. But if he tested it and sent it back as working then most usually it is user error. How are you hookng it up? How are you testing it? In the car, or on the bench?
                  Fusion Brain Version 6 Released!
                  1.9in x 2.9in -- 47mm x 73mm
                  30 Digital Outputs -- Directly drive a relay
                  15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
                  Buy now in the MP3Car.com Store

                  Comment


                  • #10
                    Sorry, it's 5 blinks. It's been awhile since I even tried it, I totally gave up on it awhile ago. here's a link to the post I made awhile back: http://www.mp3car.com/vbulletin/powe...-5-blinks.html

                    Comment


                    • #11
                      Well I go back to what I originally thought, overload. What kind of Celeron? Celeron D, Northwood or Prescott? Mobile or Desktop?

                      Well for a desktop chip that sucker draws almost 120W. That is 10A on the 12v rail. So with nothing else connected you are already overloading it.
                      Fusion Brain Version 6 Released!
                      1.9in x 2.9in -- 47mm x 73mm
                      30 Digital Outputs -- Directly drive a relay
                      15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
                      Buy now in the MP3Car.com Store

                      Comment


                      • #12
                        Desktop. But like i said, it didn't work with an old 200 mhz processor either. I can't remember the make of the celeron. It's being tested in the car, 12 guage wire coming straight from the battery to the PSU, grounded to the frame with more 12 guage wire. Ground and power are clear, since they're connected to the inverter right now and it's working fine.

                        Comment


                        • #13
                          also 12awg wire is a tad on the small side. May be what is putting your inverter into protection mode (beep).
                          Fusion Brain Version 6 Released!
                          1.9in x 2.9in -- 47mm x 73mm
                          30 Digital Outputs -- Directly drive a relay
                          15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
                          Buy now in the MP3Car.com Store

                          Comment

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