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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

    12.61V is not going to kill a motherboard.

    Google actually runs commodity motherboards on 13.8V, because they have a lead-acid battery in parallel, acting as a backup power supply.

    I think most motherboards would survive 14~15V with no lasting damage. Hard drives give problems though, I've found they spin too fast, leading to them restarting frequently. Haven't yet tried to boot from one, though...
    Last edited by tom66; 06-07-2013, 04:23 PM.
    Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
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      Re: the gutless, bloated, and fried power supply hall of shame

      Originally posted by tom66 View Post
      I think most motherboards would survive 14~15V with no lasting damage.
      That is most likely correct. OVP on most ATX power supply controllers is typically set to 14.4V IIRC.
      Originally posted by PeteS in CA
      Remember that by the time consequences of a short-sighted decision are experienced, the idiot who made the bad decision may have already been promoted or moved on to a better job at another company.
      A working TV? How boring!

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

        I know it's not dangerously high, I just don't like to see it that high. And as it warmed up even more, it's down and staying at 12.55V. I won't worry about it too much. I guess what would be more concern is just 3300uF for 12V filtering with no coil

        Comment


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

          Had this PSU in a surveillance system powering a Pentium D setup. The fan completely seized up and who knows how long it was running like that! I think the only thing that saved it was the fact that it was in a very cold server room. The heat did kill most of the OST caps without them bulging. Check out the ESR on the one in the picture!

          Replaced all the caps and the fan, it is much happier now and it looks much better
          Attached Files

          Comment


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

            Interesting. Only the 5VSB caps actually bulged. In Win Power Men usually are quite well built, but I do wish that they would use better fans. Most of the newer ones use ADDA fans.
            I love putting bad caps and flat batteries in fire and watching them explode!!

            No wonder it doesn't work! You installed the jumper wires backwards

            Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

            Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

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

              I found that strange too since while the fan WAS working, they were the closest. The fan had hardly no oil in the bearing at all, but that could have dried out from the PSU getting so hot. Poweman does have a lot of good power supplies. A shame they use a lot of ADDA...the one I used in this one is a Protechnic Electric.

              I like how in that pic showing the 5VSB caps bulging, next to the orange wires they forgot the period so it looks like "+33V"

              Comment


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

                ^
                Bestec should do that on the 5.0VSB rails on the 250-12E
                I love putting bad caps and flat batteries in fire and watching them explode!!

                No wonder it doesn't work! You installed the jumper wires backwards

                Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

                Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

                Comment


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

                  Originally posted by c_hegge View Post
                  ^
                  Bestec should do that on the 5.0VSB rails on the 250-12E
                  Nice one.

                  By the way, does the 250-12Z have the same problem?
                  "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
                  -David VanHorn

                  Comment


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

                    No, it's only the 12E
                    I love putting bad caps and flat batteries in fire and watching them explode!!

                    No wonder it doesn't work! You installed the jumper wires backwards

                    Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

                    Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

                    Comment


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

                      I'm going to steal Behemot's line and say "prepare your vomit pale"

                      I can't believe this was used in a computer for years. Those poor components. 220uF input caps, four 2A diodes, D4242 switchers, 10A for 3.3V, 16A for 5V, and two 3A diodes for 12V One cap for 12V filtering. "Pentium 4 ready" ?!?! those diodes would barely be able to handle JUST a P4 let alone everything else that uses 12V!

                      Fan is made by Foxconn, sorry for the blurry pics they didn't seem blurry till I uploaded them

                      Maybe it's called "Everest" because it would need to run at the top of Mt. Everest to do over 150W without overheating?
                      Deer
                      Attached Files

                      Comment


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

                        Originally posted by Pentium4 View Post
                        "Pentium 4 ready" ?!?!
                        It was waiting for you the whole time
                        Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

                        Exclusive caps, meters and more!
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                          Re: the gutless, bloated, and fried power supply hall of shame

                          Comment


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

                            Wow, look at how smokin hot that filter choke got!

                            I guess those caps survived because they weren't mounted next to any hot components xD

                            What is wrong with the psu? Does the 5vstby read 5v, or does it read 20v?
                            Muh-soggy-knee

                            Comment


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

                              Looks just like the free-with-tigerdirect-case power supplies.

                              Because it is.


                              Originally posted by ben7 View Post
                              Wow, look at how smokin hot that filter choke got!

                              I guess those caps survived because they weren't mounted next to any hot components xD
                              Looks like undersized traces overheated, discoloring the board... The winding varnish is not discolored.

                              Originally posted by ben7 View Post
                              What is wrong with the psu?
                              What isn't?

                              No X-rated line-to-gnd caps
                              "Invisible" RFI/EMI filter- that's ok since the "FCC" logo is fake
                              Undersized wiring, complemented by overfusing

                              But at least the standby transistor is heatsinked!


                              Originally posted by ben7 View Post
                              Does the 5vstby read 5v, or does it read 20v?
                              25v, with lots 'o ripple- the 5VSB cap, yes, just one of them, seems to be "hiding out" behind the heatsink...

                              A Deer, perhaps? "Model number" (that they pulled outta their ass) is the same format. xxB-450.
                              Last edited by kaboom; 07-08-2013, 03:23 PM.
                              "pokemon go... to hell!"

                              EOL it...
                              Originally posted by shango066
                              All style and no substance.
                              Originally posted by smashstuff30
                              guilty,guilty,guilty,guilty!
                              guilty of being cheap-made!

                              Comment


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

                                Originally posted by kaboom View Post
                                Looks just like the free-with-tigerdirect-case power supplies.

                                Because it is.

                                Looks like undersized traces overheated, discoloring the board... The winding varnish is not discolored.

                                What isn't?

                                No X-rated line-to-gnd caps
                                "Invisible" RFI/EMI filter
                                Undersized wiring, complemented by overfusing

                                25v, with lots 'o ripple- the 5VSB cap, yes, just one of them, seems to be "hiding out" behind the heatsink...
                                In "what is wrong with it" I meant, is there a short on one of the rails? Blown transistors? 5vsb overvoltage, etc...

                                Lol at the 25V on the 5vsb!
                                Muh-soggy-knee

                                Comment


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

                                  Originally posted by ben7 View Post
                                  Lol at the 25V on the 5vsb!
                                  If a little (voltage) is good, more (voltage) must be better!



                                  Originally posted by Pentium4 View Post
                                  I can't believe this was used in a computer for years.
                                  And this one isn't even as bad as the "Adam-Puter" was. With the saturn caps that one had, the HDD and fan motors were screamin', as was the VRM!

                                  Leadmans may run hot and be sloppily built, but (oh)Deers are complete overkill! You can just eliminate the secondary rectifiers and caps, and dump 12VAC at 50kHz into the system. What's the difference??
                                  Last edited by kaboom; 07-08-2013, 03:30 PM.
                                  "pokemon go... to hell!"

                                  EOL it...
                                  Originally posted by shango066
                                  All style and no substance.
                                  Originally posted by smashstuff30
                                  guilty,guilty,guilty,guilty!
                                  guilty of being cheap-made!

                                  Comment


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

                                    Originally posted by ben7 View Post
                                    Wow, look at how smokin hot that filter choke got!

                                    I guess those caps survived because they weren't mounted next to any hot components xD

                                    What is wrong with the psu? Does the 5vstby read 5v, or does it read 20v?
                                    Wait till I get more pics, the minimum load resistor on the 12V got so hot that the PCB next to it is almost black and all the color bands faded off! I have a junk Intel mobo here with bloated KZG caps and a Pentium D. I will load it up until it explodes
                                    Originally posted by kaboom View Post
                                    If a little (voltage) is good, more (voltage) must be better!





                                    And this one isn't even as bad as the "Adam-Puter" was. With the saturn caps that one had, the HDD and fan motors were screamin', as was the VRM!

                                    Leadmans may run hot and be sloppily built, but (oh)Deers are complete overkill! You can just eliminate the secondary rectifiers and caps, and dump 12VAC at 50kHz into the system. What's the difference??
                                    kaboom you crack me up man
                                    Last edited by Pentium4; 07-08-2013, 07:05 PM.

                                    Comment


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

                                      Linkworld LPK2-30. I am somewhat surprised by this thing actually, but it still sucks. 470uF Fuhjyyu input caps. Really surprised to see a 6A bridge and 12A TO-247 switchers. What else is surprising, no fast recovery rectifiers, and the biggest one is on the 12V. 3.3V = 20A, 5V = 20A, 12V = 30A. And...it even has a good size inductor on the 12V, but a Fuhjyyu cap... Sleeve bearing fan wired straight to the 12V 5V minimum load resistor is burned up.

                                      I would consider recapping this and replacing the fan if the main transformer wasn't microscopic.
                                      Attached Files

                                      Comment


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

                                        I am just curious, what the hell do you do that you have time to dive into such crap basically every single day?!
                                        Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

                                        Exclusive caps, meters and more!
                                        Hardware Insights - power supply reviews and more!

                                        Comment


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

                                          Customers recycle their old computers and I have dibs on pretty much anything that I want, and the rest goes to a company that takes what we don't want. I reuse lots of parts and sell used computers as well

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