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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

    ^ Exactly!

    Too many people online simply just shout numbers without any scientific evidence whatsoever.

    Comment


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

      Originally posted by momaka View Post
      Maybe whoever was in control of the conveyor speed for the assembly line accidentally bumped the knob to "high speed" and then the workers tried to compensate by installing everything quickly?
      i think u just described exactly the kind of thing that goes on in a chinese sweatshop!
      Originally posted by RJARRRPCGP View Post
      A Core 2 Quad, OTOH, exponentially goes up in watts when OC'ed, 250 W easily for the processor alone at 3.3!

      Easily like an OC'ed FX, if not more! In fact, I wouldn't be surprised if a 65 nm Quad makes my FX look like a green freak! LOL!

      The OC expert folks say 250 W+ easily for CPU alone with 1.4 V Vcore at only 3.3. So, that would easily mean at least a 350 W PSU, if not a 400 W PSU. (And that's with a video card that don't use a power plug, such as a GeForce GT 640 and GeForce GTX 750)
      i think their measurement might have been at the wall with a wattmeter which is a meaurement from the ac side and does not take into account the inefficiency of the psu.

      a common mistake is them thinking e.g. a 500w psu means 500w max from the ac side which is wrong... its supposed to be 500w max output from the dc side not the input ac side.

      their calculation of the cpu's power consumption is also prone to a degree of inaccuracy from trying to reverse engineer how much power the other components (mobo, ram, hdd, gpu) are using and they might have missed out a few other things in their calculation.

      i still think those cpu wattage calcs (where u input the stock clocks, voltages and wattage) are a good estimation of cpu power consumption assuming u dont go crazy with the overclocks and overvoltages till u cause the cpu's internal capacitance to totally screw up the tdp calculation!
      Last edited by ChaosLegionnaire; 01-01-2016, 11:58 PM.

      Comment


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

        Originally posted by ChaosLegionnaire View Post
        i think u just described exactly the kind of thing that goes on in a chinese sweatshop!
        Well, I was thinking either that... or someone was playing that Macarena song on the radio / over the PA while the workers were on the assembly line.
        Explains why the components appeared all "dancy" on the board.

        Originally posted by ChaosLegionnaire View Post
        i still think those cpu wattage calcs (where u input the stock clocks, voltages and wattage) are a good estimation of cpu power consumption assuming u dont go crazy with the overclocks and overvoltages till u cause the cpu's internal capacitance to totally screw up the tdp calculation!
        I don't know about that. In my experience, those calculators always grossly over-estimate the power needed.
        Personally, I prefer to go to cpu-world.com and look up the TDP spec of the CPU I am using, then do a bunch more calcualtions (such as, assume only 90% efficiency for CPU VRM), add 5-15 Watts for RAM, some more for HDD, and if there is to be a add-on graphics card, I try to look up the TDP of that too. That's it. If the CPU is to be over-clocked, I simply look up the CPU spec that is from the same family and has the same core but higher clock, and use the TDP spec from that. Easy! And a lot more accurate.
        Last edited by momaka; 01-02-2016, 03:50 PM.

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

          Originally posted by RJARRRPCGP View Post
          ... The OC expert folks say 250 W+ easily for CPU alone with 1.4 V Vcore at only 3.3 ...
          Here's to your "experts":

          . . .

          Glory days of CPU overclocking are long gone. That said, overclocking your CPU can give you extra frames in games and noticeably shorter render times.
          Last edited by TELVM; 01-02-2016, 06:10 PM.

          Comment


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

            Lol, I just noticed the CPU glued to its heatsink by rock-hard thermal compound, being pulled from locked socket

            Hate when that happens…rotating the heatsink while CPU is still in socket often helps.
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              Re: the gutless, bloated, and fried power supply hall of shame

              Premier DR-8460BTX

              SB3045ST @ 5V

              SB1060CT @ 12V

              S10C45C @ 3.3V

              2x 13007 transistors

              33 sized transformer

              2x 330uF 200V ANODIA caps

              2N65 for 5vsb

              4 diode treatment for AC rectification

              Incomplete EMI input filter

              Tiny heatsinks

              1x1000uF for every important output

              Not a single coil for ripple filtering

              Tiny toroid coils

              Tiny parts everywhere

              But it works and none of the caps are bulging... The fan is moving at full speed. This thing was buried in dust and tobacco residue...
              Attached Files
              Last edited by goodpsusearch; 05-07-2016, 06:12 PM.

              Comment


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

                Originally posted by goodpsusearch View Post
                Premier DR-8460BTX
                SB3045ST @ 5V
                SB1060CT @ 12V
                S10C45C @ 3.3V
                ... And yet the label says the "dual" 12V rail can handle 14 + 16 Amps . Where the fuck do they see that at with a 10 Amp rectifier?

                At least they put a nice big label with bright red letters. Probably to warn users: "Warning! This PSU is dangerous!".

                Originally posted by goodpsusearch View Post
                2x 13007 transistors
                33 sized transformer
                2x 330uF 200V ANODIA caps
                2N65 for 5vsb
                4 diode treatment for AC rectification
                Incomplete EMI input filter
                Tiny heatsinks
                Typical Deer/L&C.
                Don't forget those big, low-resistance dummy load resistors on the output. I see the one for the 5V rail is 20 Ohms. Should keep the output caps nice and toasty.

                Originally posted by goodpsusearch View Post
                1x1000uF for every important output
                Not a single coil for ripple filtering
                Tiny toroid coils
                Tiny parts everywhere
                Woah DUDE, chill. Let's just go surfing! No, DUDE, not surfing the internet. I meant surfing those huge AWESOME ripple tidal waves from the PSU output. Yeah, now wouldn't that be TOTALLY RAD DUDE?
                /goofy_surfer_voice


                Originally posted by goodpsusearch View Post
                But it works...
                Typical Deer/L&C. x2

                I guess they are dependable PSUs - that is, you can always depend on them to kill your hardware.

                The case looks nice, though. Could be used to house the guts from another PSU if needed.
                Last edited by momaka; 05-07-2016, 11:18 PM.

                Comment


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

                  Originally posted by TELVM View Post
                  That was for 65nm quads. The 45 nms are much better.
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                  Comment


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

                    the Q9505 is a 45nm CPU...

                    And you can't do anything about physics...
                    If you increase the voltage, even a little bit, the powerconsumption skyrockets...

                    Comment


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

                      And here is a Micro ATX (SFX) 1.3 which came with a Deluxe case so im guessing the PSU is also made by them because there is no UL code.

                      All caps seem to be Chengx but at least they are rated 105degrees.
                      No heatshrink anywhere, a probably underpowered 10A schottky, the fuse is soldered directly to the board, but at least there seems to be a PWM IC CG8010DX16 supporting UVP/OVP
                      Attached Files
                      Last edited by Viperel; 05-12-2016, 10:59 PM.

                      Comment


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

                        450W? For how many milliseconds?
                        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 PeteS in CA View Post
                          450W? For how many milliseconds?
                          Actually,that might be another 0W PSU,as there are absolutely no PI coils (or ANY SPACE printed on the PCB for them,let alone holes),thus it won't do a watt in spec. Good only for smashing.
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                          Comment


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

                            Originally posted by PeteS in CA View Post
                            450W? For how many milliseconds?
                            I tried for the fun of it to hook up an 80W/12V bulb and the +12v rail showed 10.1V

                            Comment


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

                              It's +5V heavy, you should load the rail as well. At least couple amps.
                              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

                                From the looks of those pictures, looks like the black Line wire is going to Neutral and the white neutral wire is going to Line. Be careful with that one and don't get electrocuted - or start a fire!
                                Old proverb say.........If you shoot at nothing, you will hit nothing (George Henry 10-14-11)

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