Old Dell PS 5201-7D 200 watt psu

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  • everell
    Badcaps Legend
    • Jan 2009
    • 1514
    • USA

    #1

    Old Dell PS 5201-7D 200 watt psu

    Have inherited old Dell psu. Somewhat strange in that wires to 20 pin mobo connector don't match the usual plan. PWM is UC3845 and protection chip is TSM110 - could not find data sheet for this one. 5VSB works but +5/+12/+3.3 are all dead. Date of mfg stamped on case is 12-07-00. The Dell it came out of is either unique or antique. Anyone know anything about it?
    Old proverb say.........If you shoot at nothing, you will hit nothing (George Henry 10-14-11)
  • Krankshaft
    Badcaps Legend
    • Jan 2007
    • 2328
    • USA

    #2
    Re: Old Dell PS 5201-7D 200 watt psu

    Dell departed from the standard PSU pinout in late 1998 they are proprietary supplies. They have since returned to the standard ATX layout.

    I have seen special conversion harnesses allowing you to use standard ATX supplies on these boards.
    Last edited by Krankshaft; 02-10-2009, 08:02 PM.
    Elements of the past and the future combining to make something not quite as good as either.

    Comment

    • Toasty
      Badcaps Legend
      • Jul 2007
      • 4171

      #3
      Re: Old Dell PS 5201-7D 200 watt psu

      Google: dell power supply adapter OR dell motherboard power supply adapter

      Dell Adapter

      or (cheaper)

      DELL MOTHERBOARD POWER ADAPTER



      Toast
      veritas odium parit

      Comment

      • PCBONEZ
        Grumpy Old Fart
        • Aug 2005
        • 10661
        • USA

        #4
        Re: Old Dell PS 5201-7D 200 watt psu

        Those adapters are to use standard PSU with Mobo that everell's PSU is supposed to go to.
        They don't convert his/her PSU to standard.

        Dell used those on late generation P3's.
        Not sure if some or all.
        Mann-Made Global Warming.
        - We should be more concerned about the Intellectual Climate.

        -
        Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.

        - Dr Seuss
        -
        You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
        -

        Comment

        • Toasty
          Badcaps Legend
          • Jul 2007
          • 4171

          #5
          Re: Old Dell PS 5201-7D 200 watt psu

          Ah-ha! Gotcha.

          So, if you want to go FROM Dell PSU TO ATX mobo, then it looks like it's a homebrew project.

          Try here, bottom of the article:
          Dell Case Mods


          Toast
          veritas odium parit

          Comment

          • PCBONEZ
            Grumpy Old Fart
            • Aug 2005
            • 10661
            • USA

            #6
            Re: Old Dell PS 5201-7D 200 watt psu

            As I recall you can get by with switching the wires around in the plastic connector.
            You should look up the pin-outs and check wire colors first because I think some of the Dells used non-standard wire colors for the voltages.

            Here is the odd-ball pin-out.
            http://pinouts.ru/Power/dell_atxpower_pinout.shtml
            Mann-Made Global Warming.
            - We should be more concerned about the Intellectual Climate.

            -
            Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.

            - Dr Seuss
            -
            You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
            -

            Comment

            • PCBONEZ
              Grumpy Old Fart
              • Aug 2005
              • 10661
              • USA

              #7
              Re: Old Dell PS 5201-7D 200 watt psu

              Oops.
              Either that drawing is wrong or my memory is.
              There is no +3.3v shown.
              Mann-Made Global Warming.
              - We should be more concerned about the Intellectual Climate.

              -
              Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.

              - Dr Seuss
              -
              You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
              -

              Comment

              • PCBONEZ
                Grumpy Old Fart
                • Aug 2005
                • 10661
                • USA

                #8
                Re: Old Dell PS 5201-7D 200 watt psu

                Nope, looks like that PSU has no 3.3v rail.
                Mann-Made Global Warming.
                - We should be more concerned about the Intellectual Climate.

                -
                Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.

                - Dr Seuss
                -
                You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                -

                Comment

                • PCBONEZ
                  Grumpy Old Fart
                  • Aug 2005
                  • 10661
                  • USA

                  #9
                  Re: Old Dell PS 5201-7D 200 watt psu

                  The 3.3v is there, but not in the 20 pin.
                  3.3v is in the 6 pin mobo connector.
                  Mann-Made Global Warming.
                  - We should be more concerned about the Intellectual Climate.

                  -
                  Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.

                  - Dr Seuss
                  -
                  You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                  -

                  Comment

                  • Krankshaft
                    Badcaps Legend
                    • Jan 2007
                    • 2328
                    • USA

                    #10
                    Re: Old Dell PS 5201-7D 200 watt psu

                    Gotta love Dell just replaced 2 toasted HL Data Storage drives on 2 different Dimensions one was an 04 model and the other an 05 model. The drives weren't even heavily used.

                    One would read CDs but not burn CD-Rs the other wouldn't read Data CDs but would read music CDs and not would burn CD-Rs with a bit of a racket.

                    Dell always seems to cheap out on parts and I'm sure these proprietary supplies were no different.
                    Last edited by Krankshaft; 02-11-2009, 09:18 AM.
                    Elements of the past and the future combining to make something not quite as good as either.

                    Comment

                    • everell
                      Badcaps Legend
                      • Jan 2009
                      • 1514
                      • USA

                      #11
                      Re: Old Dell PS 5201-7D 200 watt psu

                      Thank you Mr. PCBonez - I checked out the website with the pinout information. The 5VSB came up just fine, and when I grounded the proper color coded wire (PS on), the other voltages came on just fine. Guess someone dumped this PS because it didn't have a standard pinout. I don't have any use for it now either, but it was great to learn that you should never plug in a power supply and turn it on without making sure it has a standard pinout!

                      Tom
                      Old proverb say.........If you shoot at nothing, you will hit nothing (George Henry 10-14-11)

                      Comment

                      • weirdlookinguy
                        Badcaps Legend
                        • Sep 2007
                        • 1638

                        #12
                        Re: Old Dell PS 5201-7D 200 watt psu

                        Older HL drives are pretty decent Krankshaft. Bet you didn't even try cleaning the lasers first.

                        Comment

                        • 370forlife
                          Large Marge
                          • Aug 2008
                          • 3112
                          • United States

                          #13
                          Re: Old Dell PS 5201-7D 200 watt psu

                          Originally posted by Krankshaft
                          Gotta love Dell just replaced 2 toasted HL Data Storage drives on 2 different Dimensions one was an 04 model and the other an 05 model. The drives weren't even heavily used.

                          One would read CDs but not burn CD-Rs the other wouldn't read Data CDs but would read music CDs and not would burn CD-Rs with a bit of a racket.

                          Dell always seems to cheap out on parts and I'm sure these proprietary supplies were no different.
                          I had that same problem with our dell. We bought a lightscribe dvd-ram drive for it because the cd-rw it came with was acting up. I didn't know this at the time, and i swapped it out with my computer's (at that time, it was a 667mhz p3, about 3 years ago.) white compaq (lite-on) 40x cd-rom. For some reason, that dell's cd-rw would write cd's just fine, but when you tried to read, it would be very slow. I played red alert 2 just fine with the compaq 40x, but with that drive, it would read the cd so slowly the game ran really bad.

                          Comment

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