OK to replace 820uF with 2200uF?

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  • pgaastra
    New Member
    • Apr 2007
    • 4
    #1

    OK to replace 820uF with 2200uF?

    We have a Dell Precision 360 with four 820uF 6.3V bad capacitors.

    We gave bag of 2200uF 10V caps which I have been using to replace bad caps on Dell GX270's very successfully.

    Am I going to strain some components on start up if I use a 2200uF instead of a 820uF?

    Thanks.
    Tags: None
    • Per Hansson
      Super Moderator
      • Jul 2005
      • 5895
      • Sweden
      #2
      Re: OK to replace 820uF with 2200uF?

      An increase from 3280uF to 8800uF could be inadvisable
      Depends on the design
      Post a pic of the thing, and also what where the exact name of the old and new caps?
      "The one who says it cannot be done should never interrupt the one who is doing it."

        Comment

        • pgaastra
          New Member
          • Apr 2007
          • 4
          #3
          Re: OK to replace 820uF with 2200uF?

          The faulty capacitors are Nichicon 820uF 6.3V HN(M) capacitors

          The ones I am thinking about installing are: Suntan 220uF 10V with CD286 +105DegC markings.

          I am not worried about the quality of the replacement caps just whether putting such huge capacitors in place of the broken ones causes too much inrush current or something when the boards is powered up.

          Thanks

            Comment

            • PCBONEZ
              Grumpy Old Fart
              • Aug 2005
              • 10661
              • USA
              #4
              Re: OK to replace 820uF with 2200uF?

              1:
              820->2200 is a huge jump and probably a bad idea.
              No one here can say for CERTAIN if you will or won't run into problems.

              2:
              Those Suntan are a cheap brand and probably not low ESR.
              They might work for a short time (maybe) but they won't last very long.

              .
              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

                • pgaastra
                  New Member
                  • Apr 2007
                  • 4
                  #5
                  Re: OK to replace 820uF with 2200uF?

                  Thanks for the warning about the Suntan brand. Jaycar (Australian based) used to sell Samxon low esr and now the same catalog number gets you Suntan. They are definitely Low ESR and I have used a heap of them to fix Dell GX270 mother boards but most have been in service less than a year (none have failed yet). Hopefully our company is going to replace the PC's before they all start to fail.

                  I think I will put the Suntan 2200uF in place of the 820uF an see what happens.

                    Comment

                    • PCBONEZ
                      Grumpy Old Fart
                      • Aug 2005
                      • 10661
                      • USA
                      #6
                      Re: OK to replace 820uF with 2200uF?

                      One of the members here by the name "Big Pope" is a Samxon dealer outside the US and Canada. [That is the agreement between him and Top Cat, the owner of this site.
                      You can PM him.
                      https://www.badcaps.net/forum/member.php?userid=682

                      .
                      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

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