gateway poly replacement help...

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  • eppidrummer
    Senior Member
    • Jan 2011
    • 65
    #1

    gateway poly replacement help...

    I actually have 2 E210882 boards (1-intel, 1-Gateway) both very similar. I want to recap them both and use all poly caps but a bit confused.

    They both currently run well but have the HMM caps scattered all over the boards.
    I know the poly thing is still a crap shoot but are the volt and uf both divided in 2?
    The caps I want to replace are:
    Rubycon 16v 1200uf ZL 10mm
    Rubycon 6.3v 3300uf MBZ 10mm
    Nichicon 16v 680uf HMM
    Nichicon 16v 470uf

    Anyone here replaced these before or have ex with this board? Or know of a guesstimate of a poly replacement for these?

    Thanks!
    Tags: None
    • tazwegion
      Badcaps Veteran
      • Jun 2006
      • 444
      • Australia
      #2
      Re: gateway poly replacement help...

      Originally posted by eppidrummer
      They both currently run well

      Rubycons are quality components and it was only the earlier Nichicon HM series that had issues IIRC... so why go to all that unnecessary effort when they're both working okay?
      Viva LA Retro!

        Comment

        • PCBONEZ
          Grumpy Old Fart
          • Aug 2005
          • 10661
          • USA
          #3
          Re: gateway poly replacement help...

          E210882 is not a model number.
          Same number can be on dozens of different models.
          [So I don't know what you are looking at there....]

          The HMM caps are actually just HM.
          The other M is the uF tolerance of +/-20%

          The HM are the only ones I'd worry about unless you just WANT to do a poly mod.
          If you are of a mind to do that step 1 is to find out what voltage is on the caps.
          [And since we dunno what boards you have there.........]
          .
          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

            • eppidrummer
              Senior Member
              • Jan 2011
              • 65
              #4
              Re: gateway poly replacement help...

              Thanks for the info, found the actual model and polys I need just havent been able to get to it yet.

                Comment

                • PCBONEZ
                  Grumpy Old Fart
                  • Aug 2005
                  • 10661
                  • USA
                  #5
                  Re: gateway poly replacement help...

                  You aren't getting advice from on of those 'gamer sites' are you?
                  Those guys are well intentioned but as often as not they don't know their arse from a hole in the berm.

                  Outside of the VRM reducing uF can be a bad idea resulting in an unstable board.
                  With the following exception I wouldn't poly-mod anything except the VRM caps on your board and probably I'd only do the Vcore caps

                  The exception: I don't know if this applies to your board without having traced the circuits.
                  A lot of Intel built boards use a 680uF that has something to do with the chipset.
                  [Very common on Intel/Foxconn-for-Dell boards.]
                  That bugger gets worked hard and it's not uncommon to see a bad one because of it.
                  It's clear to me that low ESR is critical there as the actual volts is under 5v and they are always 10v [or more] caps. [Which is a 'trick' used to reduce ESR.]
                  It's also clear to me that the uF value is important there or they'd just use a 820uF or 1000uF cap instead [for the lower ESR].
                  - I'm ASSUMING that is what your 680uF is as you haven't posted photos or given a model number.
                  Trace the circuit that cap is in and if it goes to the chipset then in addition to Vcore I would poly that one with a 680uF [of 6.3v or more].
                  .
                  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

                    • eppidrummer
                      Senior Member
                      • Jan 2011
                      • 65
                      #6
                      Re: gateway poly replacement help...

                      Originally posted by PCBONEZ
                      You aren't getting advice from on of those 'gamer sites' are you?
                      Those guys are well intentioned but as often as not they don't know their arse from a hole in the berm.

                      Outside of the VRM reducing uF can be a bad idea resulting in an unstable board.
                      With the following exception I wouldn't poly-mod anything except the VRM caps on your board and probably I'd only do the Vcore caps

                      The exception: I don't know if this applies to your board without having traced the circuits.
                      A lot of Intel built boards use a 680uF that has something to do with the chipset.
                      [Very common on Intel/Foxconn-for-Dell boards.]
                      That bugger gets worked hard and it's not uncommon to see a bad one because of it.
                      It's clear to me that low ESR is critical there as the actual volts is under 5v and they are always 10v [or more] caps. [Which is a 'trick' used to reduce ESR.]
                      It's also clear to me that the uF value is important there or they'd just use a 820uF or 1000uF cap instead [for the lower ESR].
                      - I'm ASSUMING that is what your 680uF is as you haven't posted photos or given a model number.
                      Trace the circuit that cap is in and if it goes to the chipset then in addition to Vcore I would poly that one with a 680uF [of 6.3v or more].
                      .
                      Nope Actually figured out a non poly replacement comparing values now just learning here as I go.
                      This is a great place here to learn, would not trust to many other places for advice!

                        Comment

                        • eppidrummer
                          Senior Member
                          • Jan 2011
                          • 65
                          #7
                          Re: gateway poly replacement help...

                          Dont have the an exact on polys, just and estimate on what I am learning.
                          My board is a DQ965C0K. The v-core already has poly caps.

                          Runs now but just dont want to ever have to worry about it crapping out.

                          Is this board even worth screwing with?

                            Comment

                            • PCBONEZ
                              Grumpy Old Fart
                              • Aug 2005
                              • 10661
                              • USA
                              #8
                              Re: gateway poly replacement help...

                              Worth it or not is something for you to decide.

                              If you are planning on staying with this set-up for a while I would look for a good deal on another one.
                              Test it, box it, and stick it in the closet for an emergency spare.

                              Then, if it ever bites the dust, swap boards to get the system back and attempt repair on the one that failed.
                              If you manage to fit it, it becomes the spare.
                              .
                              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

                                • eppidrummer
                                  Senior Member
                                  • Jan 2011
                                  • 65
                                  #9
                                  Re: gateway poly replacement help...

                                  Originally posted by PCBONEZ
                                  Worth it or not is something for you to decide.

                                  If you are planning on staying with this set-up for a while I would look for a good deal on another one.
                                  Test it, box it, and stick it in the closet for an emergency spare.

                                  Then, if it ever bites the dust, swap boards to get the system back and attempt repair on the one that failed.
                                  If you manage to fit it, it becomes the spare.
                                  .
                                  Actually have about 10 on hand at the shop. Just thought of completely poly modding one for home.

                                    Comment

                                    • PCBONEZ
                                      Grumpy Old Fart
                                      • Aug 2005
                                      • 10661
                                      • USA
                                      #10
                                      Re: gateway poly replacement help...

                                      If it's just a learning experience / DIY satisfaction kind of thing then $ don't really matter.
                                      It's worth it...
                                      .
                                      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
                                          #11
                                          Re: gateway poly replacement help...

                                          As I said before, Step 1 is to find out what the actual voltage is on any caps you intend to replace.
                                          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

                                            • eppidrummer
                                              Senior Member
                                              • Jan 2011
                                              • 65
                                              #12
                                              Re: gateway poly replacement help...

                                              Thanks for your input. Advice on this forum is highly respected and greatly appreciated

                                                Comment

                                                • PCBONEZ
                                                  Grumpy Old Fart
                                                  • Aug 2005
                                                  • 10661
                                                  • USA
                                                  #13
                                                  Re: gateway poly replacement help...

                                                  A way to do that [check voltages] and and minimize the need to flip a hot [energized] board over to hunt for test points is to solder some wires to the 'stubs' where they clipped the cap leads after they were soldered in. Then mark the wires by the cap they go to and run them off to the side. [Fasten them down so they don't short together.] Then you can fire up the board and just check the voltage at the wires without flipping and hunting for the test points. - Do about ten at time.
                                                  .
                                                  Can also [cold board] use the ohms scale and find out which caps are in parallel.
                                                  Only need to voltage check one cap in each parallel 'set'.
                                                  You will sometimes find caps that are on complete opposite ends of the board that are actually in parallel through the traces in the board.
                                                  Knowing which ones are in parallel can cut the number of test points you need by more than 1/2 on some boards.
                                                  .
                                                  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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