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Please add a note to the pico psu series

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  • Please add a note to the pico psu series

    please, when there are not any notes that it is not capable for use in the car, people buy it and blow things up, making them angry that no one told them that it didn't work in the car...
    My OLD 2001 Mitsubishi Eclipse GT:
    "The Project That Never Ended, until it did"


    next project? subaru brz
    carpc undecided

  • #2
    Yes. It took me a little while to figure this out myself. Many people don't read the specs. They just read the title as say "160 watt pico psu" and buy it and then don't feed it with regulated power.
    Originally posted by Lincolnman
    Your English is fine, don't apologize. You're doing better than most Americans.

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    • #3
      Many fail to understand the specs anyhow - so many think a car is "12V" as opposed to the (IMO) standard design spec of 8V-16V, else at least the VERY common 15V upper (typically 14.7V) and down to whatever dip is normally experienced - eg, ~11V with lights/brakes first applied, or 9V-10V during cranking and maybe the start-up of hi-powered engine cooling fans.

      But omission of such info means more sales for such "12V Regulated" products (at the risk of future brand avoidance etc).

      A related aside - IMO, PSUs that handle down to an even lower ~6V should be applauded and appreciated. (Even my designs try to meet or exceed a mere minimum of 8V, though I well & truly appreciate my ignition system and startermotor that start a cold (10C) engine - not that that is car PC & PSU related.)


      But I too argue for appropriate warnings. If not for any implied obligations or onus, then at least for goodwill, AND to save us wasting money.

      [Yet again thanks to soundman [maybe we are a bit out of the norm!]. And thanks to kolton for his supporting experience.]

      Comment


      • #4
        i am thinking this needs to be retitled as "the mp3car store stinks" to get their attention... i have made a couple recommendations like this in the past, and all appear to have been missed by the powers that be... while it is a nice warning for fellow experienced members, it does nothing in the way of store reputability, or return customers...
        My OLD 2001 Mitsubishi Eclipse GT:
        "The Project That Never Ended, until it did"


        next project? subaru brz
        carpc undecided

        Comment


        • #5
          i'm gonna bump thread thread every time i have to tell someone that they cannot use the picopsu in-car..

          this is 2..
          My OLD 2001 Mitsubishi Eclipse GT:
          "The Project That Never Ended, until it did"


          next project? subaru brz
          carpc undecided

          Comment


          • #6
            I support you.

            As I do with any support I can offer any claim (fair or misleading advertising etc. hint hint...).

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            • #7
              Ditto. It's not regulating the power. You need an intelligent psu or other regulated psu
              CarPc
              Project "Driver"

              Planning [99.9%]

              Parts Collected [98.5%]

              Installation & Fabrication [98%]

              Total Completion Level [96.9 %]

              http://www.mp3car.com/vbulletin/work...ct-driver.html

              Comment


              • #8
                Is there anything wrong with using a PicoPSU with a CNX-P2140? Other than the expense, it looks like a very flexible solution.

                I've used PicoPSUs for many years in miniATX servers, using 12V wall warts. Very reliable, never had a failure. To claim that you shouldn't use them is not fully accurate. Just make sure you feed them filtered 12V power and you are golden.
                Zotac H55-ITX w/ 802.11n WiFi, i3-550/3.20GHz, 8GB DDR3 1333MHz, 120G Intel SSD, P2140,
                7" pseudo-transflective resistive TS, Win7-64, Centrafuse 4.3, Elmscan Compact 6, BU-353, Rear camera, Trailer camera

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                • #9
                  Yes, same question. I thought that regulated power supplies were relatively common in car setups. Shouldn't the recommendation be that they must be used with a regulated power supply rather than not being suitable for use in a vehicle?

                  Comment


                  • #10
                    ^yes, i agree with both of you-- my take might be a little overzealous (though still ignored by mp3car mods). though, even if you have a pico psu left over from another project, i really don't see a reason to use it in-car, because you still need a power supply that provides regulated power--many times any other psu will connect directly to the motherboard without modification, where attempting to use a regulated psu with a pco psu might require modification to the wiring harness.

                    Originally posted by Zephrant View Post
                    Is there anything wrong with using a PicoPSU with a CNX-P2140? Other than the expense, it looks like a very flexible solution.

                    I've used PicoPSUs for many years in miniATX servers, using 12V wall warts. Very reliable, never had a failure. To claim that you shouldn't use them is not fully accurate. Just make sure you feed them filtered 12V power and you are golden.
                    your right.

                    there is nothing wrong with the pico psu models, but the way they are marketed on this specific forum. while i agree that the pico psu series does great in the home pc/server area, this forums primary focus is in-car computing, and in a car, using a pico-psu by itself is a bad option-- you would require 2 power supplies to do what 1 will do(and how many people are going to buy 2 psu's for 1 pc?). also, before making this thread, i have read of many new members that choose it as a option for their carpc build because of the low cost--not realizing that it is not suitable for car use by itself. and, by the fact that many people don't post until there is a problem, i suspect that only half of the people considering, or purchasing the pico psu bothered to read any warning of why not to use it by itself in car.
                    My OLD 2001 Mitsubishi Eclipse GT:
                    "The Project That Never Ended, until it did"


                    next project? subaru brz
                    carpc undecided

                    Comment


                    • #11
                      soundman x 2.

                      Plus I dislike double conversions - ie, vehicle to +12V, then pico to whatever.
                      Do it in one go for reliability (not one fails both fail) plus half the inefficiency. Unless you have spare regulator capacity and a pico on hand....

                      Comment


                      • #12
                        Thanks- I had bought the CNX-P2140 without realizing that it was only a dual 12V source, not an ATX source, so I then got an M4-ATX. I was planning to return the NIB CNX and run the M4-ATX, but now I'm pretty disappointing with the M4. (Emits noise that wipes out my factory radio FM stations, can't re-program it via USB, and their monitoring software REALLY sucks).

                        Instead of fixing the faults of the M4-ATX with feed-though RF filters, a shielded cage and a PIC programmer, I'm thinking of keeping the CNX-P2140 and buying a PicoPSU. As I said, it's an expensive way to go, but I'm a sucker for monitoring stuff and the CNX looks like it has a good monitor/control app.

                        I agree on the warnings though- I've seen threads about the Pico's already, and I haven't been around here long.
                        Zotac H55-ITX w/ 802.11n WiFi, i3-550/3.20GHz, 8GB DDR3 1333MHz, 120G Intel SSD, P2140,
                        7" pseudo-transflective resistive TS, Win7-64, Centrafuse 4.3, Elmscan Compact 6, BU-353, Rear camera, Trailer camera

                        Comment

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