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the gutless, bloated, and fried power supply hall of shame

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    Re: the gutless, bloated, and fried power supply hall of shame

    What are you planing on doing to that PSU? Scrap it? Burn it? Throw it off an cliff?
    I'm not a expert, I'm just doing my best.

    Comment


      Re: the gutless, bloated, and fried power supply hall of shame

      Originally posted by ruky con View Post
      What are you planing on doing to that PSU? Scrap it? Burn it? Throw it off an cliff?
      I have thought, is to charge to burst, but for lack of machinery I can not do it .
      I'll think of something like busting her xD.
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        Re: the gutless, bloated, and fried power supply hall of shame

        Originally posted by kevin! View Post
        I have thought, is to charge to burst, but for lack of machinery I can not do it .
        I'll think of something like busting her xD.
        I have a crap PSU which i'm thinking of putting 2.1KV into the input via an MOT. [Microwave oven transformer.]
        I'm not a expert, I'm just doing my best.

        Comment


          Re: the gutless, bloated, and fried power supply hall of shame

          woe... kilovolts... better be careful when u do that! u get zapped, its your funeral!

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            Re: the gutless, bloated, and fried power supply hall of shame

            Originally posted by ChaosLegionnaire View Post
            woe... kilovolts... better be careful when u do that! u get zapped, its your funeral!
            Yes, i know...
            I've done this more then once.
            I'm not a expert, I'm just doing my best.

            Comment


              Re: the gutless, bloated, and fried power supply hall of shame

              switch st stps30 45cw 30A (The only thing of decent brand xD)
              Actually, unless it's counterfeit, that KA3842 is either Samsung or Fairchild (Fairchild bought some of Samsung's linear IC products around that time).

              Those input caps (ignoring the non-brand brand) and the size of those heatsinks would put the realistic output power at around 250W maximum.
              PeteS in CA

              Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
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                Re: the gutless, bloated, and fried power supply hall of shame

                Originally posted by ruky con View Post
                I have a crap PSU which i'm thinking of putting 2.1KV into the input via an MOT. [Microwave oven transformer.]
                I dare not touch a microwave transformer xD. What I want is petarla the 450w indicated, I will put several H4 light bulbs, to see if I can overload it.

                Originally posted by PeteS in CA View Post
                Actually, unless it's counterfeit, that KA3842 is either Samsung or Fairchild (Fairchild bought some of Samsung's linear IC products around that time).

                Those input caps (ignoring the non-brand brand) and the size of those heatsinks would put the realistic output power at around 250W maximum.
                I also think it, I think it is false.
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                  Re: the gutless, bloated, and fried power supply hall of shame

                  That transformer is just... Wow!

                  PeteS in CA: Good guess, here is a user that tested it.
                  The primary exploded at 277w


                  EDIT: Here it is with a 250w rating even
                  Last edited by Per Hansson; 03-24-2017, 02:58 PM.
                  "The one who says it cannot be done should never interrupt the one who is doing it."

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                    Re: the gutless, bloated, and fried power supply hall of shame

                    Originally posted by Per Hansson View Post
                    That transformer is just... Wow!

                    PeteS in CA: Good guess, here is a user that tested it.
                    The primary exploded at 277w


                    EDIT: Here it is with a 250w rating even
                    http://www.powsun.itxpower.net/pcpower_8867.htm
                    Thanks for this information, make it clear that it is the worst psu I have ever seen.
                    I even put it at less level than deer xD.

                    If the psu of the forum of jonnyguru exploded with 277, I do not want to imagine my PSU, since with a pentium 4 of 65w of consume gave error to start, I do not want to imagine asking for load of 277 watts, there it explodes in my face.
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                      Re: the gutless, bloated, and fried power supply hall of shame

                      In most of the Americas, you would be lucky to get 150 W out of it...
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                        Re: the gutless, bloated, and fried power supply hall of shame

                        Originally posted by ruky con View Post
                        What are you planing on doing to that PSU? Scrap it? Burn it? Throw it off an cliff?
                        While PSUs like this are not worth fixing to power a computer, as an Electronics Hobbyist, I find them to be a goldmine for various projects and repairs.

                        I had a PSU back in my first computer that was even more gutless than the above PSU. When I scrapped it for parts (that is, I desoldered everything from it), I used the parts to fix many other PSUs and electronics. And I built almost my entire Senior Project in university with parts from that PSU. So it has been extremely useful and I am glad I had kept it over the years.

                        Thus, if you are into learning or playing with electronics (be it as a hobby or a profession), you will likely find crap PSUs like the above very useful over time.

                        Originally posted by Per Hansson View Post
                        That transformer is just... Wow!
                        Yeah, my thoughts exactly.
                        I'll be surprised if it holds past 100-150 Watts of load.

                        Comment


                          Re: the gutless, bloated, and fried power supply hall of shame

                          Well, up to a point. First, parts from such craps are too weak for any decent units. Second, when you have dozens of such, it gets just too much to diassemble everything (and what to do with so many components? ).
                          Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

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                            Re: the gutless, bloated, and fried power supply hall of shame

                            I present the WORST PSU AT I've seen.
                            In the photo that I measured the voltage, I almost electrocuted, because of the camera, I did not fix and I did not put the hand correctly with the tip of the multimeter. XD.
                            Kids, do not do this at home xD.
                            Going back to the subject, I find it VERY regrettable to leave a huge hole where the input of 220V DC ...
                            In addition, the primary capacitors bloweds...
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                              Re: the gutless, bloated, and fried power supply hall of shame

                              200W from that? Not with those light weight heatsinks! And with just 220uF input capacitors the hold-up time would be horrible. The thing is over 20 years old, time to send it to the recycler.
                              PeteS in CA

                              Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
                              ****************************
                              To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
                              ****************************
                              Anti-Covid-Vaxxer pig crap claim/prediction, Doctor: Heart Failure from mRNA Jabs "Will Kill Most People" | Principia Scientific Intl. ; Dr. Geert Vanden Bossche Warns COVID-19 Jab Injuries and Deaths Will Soon "Collapse Our Health System" (VIDEO) ; Fully Vaxxed May 2021; Since that time I've done 13 5Ks, 1 8K, 12 10Ks, and 4 half marathons

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                                Re: the gutless, bloated, and fried power supply hall of shame

                                Originally posted by PeteS in CA View Post
                                200W from that? Not with those light weight heatsinks! And with just 220uF input capacitors the hold-up time would be horrible. The thing is over 20 years old, time to send it to the recycler.
                                I also think the same.
                                This source will probably pull it to the scrapping. But before throwing it I wanted to share photos.
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