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Epox 8RDA+ completed.

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    #1

    Epox 8RDA+ completed.

    My 8RDA+ was the first board I replaced caps. I only replaced the critical caps of VRM and memory. The other day I looked at a remaining Teapo and thought I should finish replacing the caps. Today the computer would not start with the keyboard code into the bios and I noticed that Teapo bulging right next to the bios chip. So out came the board and replaced the 1000u 6.3V Teapo and seven GSC 470u 16V (replaced with 1000u 6.3V Samxon because they are 5 volt supply caps).

    The system is now up add running again.
    Gigabyte EP45-DS3L Ultra Reliable (Power saver)
    Intel E8400 (3000Mhz) Bios temps. 4096Mb 800Mhz DDR2 Corsair XMS2 4-4-4-12
    160Gb WD SATAII Server grade
    Nvidia 8500GT 256Mb
    160Gb WD eSATAII Server grade for backup.
    Samsung 18x DVD writer
    Pioneer 16x DVD writer + 6x Dual layer
    33 way card reader
    Windows XP Pro SP3
    Thermaltake Matrix case with 430W Silent Power
    17" Benq FP737s LCD monitor
    HP Officejet Pro K5300 with refillable tanks
    Tags: None
    #2
    Re: Epox 8RDA+ completed.

    davmax. Great, well done.

    Any overclocked ablity improved?
    My SAMXON Capacitors Database HERE!!

    X-CON is a new brand for SAMXON's Polymer Capacitors.

    Comment

      #3
      Re: Epox 8RDA+ completed.

      Never ever assume that you can replace just few of the big bulging caps. All of them has to go...

      I have issues with my PC chips M810 mobo like messages "LOW CMOS battery" an losing the keaboard and mouse frequently on reboots - just thanks to the not-yet recapped 22uF Teapos.

      I bet that when I recap then, it stop.
      "It is dangerous to be right in matters on which the established authorities are wrong." - Voltaire
      "I believe that all the people who stand to profit by a war and who help provoke it should be shot on the first day it starts..." - Hemingway my config - my caps

      Comment

        #4
        Re: Epox 8RDA+ completed.

        Originally posted by trodas
        Never ever assume that you can replace just few of the big bulging caps. All of them has to go...

        I have issues with my PC chips M810 mobo like messages "LOW CMOS battery" an losing the keaboard and mouse frequently on reboots - just thanks to the not-yet recapped 22uF Teapos.

        I bet that when I recap then, it stop.
        i had similar bugs in a msi 694t pro till i replaced the tiny 10uf@16v sm lytics.
        noise in the onboard sound too.
        forget esr testing in circut.they checked fine due to good caps further down the line.a scope showed crap on +5 at the sound chip.
        all these caps were open when pulled.replaced with sm tants.

        Comment

          #5
          Re: Epox 8RDA+ completed.

          That SMD caps are often bad on MSI boards.

          Comment

            #6
            Re: Epox 8RDA+ completed.

            kc8adu -
            i had similar bugs in a msi 694t pro till i replaced the tiny 10uf@16v sm lytics.
            noise in the onboard sound too.
            Well, I did not tested the sound output at all, as the mobo is and will be used for folding only, yet losing the keaboard and mice on reboots/power on is pretty annoyng.
            Especially when the original bios suxx and I find great moded one, with ton's of options and overclocking added. I mean - I dying to test it, but I can't, as the keyboard is not recognized anymore...
            It partly worked week before, but after week of folding (no PS/2 device connected) these Teapos seems finally giving up completely. Big Pope was somewhat convinced that it might be the resistor, thanks to his earlier experience with Asus board with the same problem fixable by replacing the resistor, however I dubt that in just a week the resistor should damage himself that much.
            But if this is dying oldie (board is made in 1994...!) Teapo and I can even smell the 15 of them, I'm convinced that they are the culprit. I can't prove it yet, as I had the replacement caps comming, twice to be sure, but both sources give up. As the Canadian, as well as Big Pope told me recently, that these small RS Samxons will be not sooner that November 3rd...

            all these caps were open when pulled.replaced with sm tants
            And that does fix the problem with losing keaboard/mice?
            And the sound, right?

            Hmmm, I can source tants locally (at least I hope, damn it) - that give me an idea, thanks!

            /me off to shop for tantal caps
            "It is dangerous to be right in matters on which the established authorities are wrong." - Voltaire
            "I believe that all the people who stand to profit by a war and who help provoke it should be shot on the first day it starts..." - Hemingway my config - my caps

            Comment

              #7
              Re: Epox 8RDA+ completed.

              Back. Damn. They aren't only want shockingly high price for these 22uF 16V tantals, they have only 14 of them. And I need 15...
              They want 12Kc per piece! 1$ is 23Kc, so, if it is 24, then they asking me half dollar per one tantal cap! Hard to believe, eh? Maybe in a week or two they got the last need one... I almost pay that price
              ...




              Big Pope make me measure the voltages on the resistor going to PS/2 port and protecting the South Bridge.

              W/O anything connected to the PS/2 ports, the measurments as follow:
              1) - 5V
              2) - 5V
              3) - 5V
              4) - 5V

              When I connected keyboard, it goes:
              1) - 4.93V
              2) - 28mV
              3) - 5V
              4) - 5V

              With keyboard AND mouse, it goes like this:
              1) - 5V (I checked this one four times...)
              2) - 30mV
              3) - 5V
              4) - 4.88V

              Normal Samsung PS/2 keyboard used as well, as Logitech MX510 blue (if that matter ) mouse
              I think these are normal results, considering the mice got thru the PS/2 to USB converter and it has to consume some electricity - neverless 4.88V is IMHO enough for good operation, is it?
              "It is dangerous to be right in matters on which the established authorities are wrong." - Voltaire
              "I believe that all the people who stand to profit by a war and who help provoke it should be shot on the first day it starts..." - Hemingway my config - my caps

              Comment

                #8
                Re: Epox 8RDA+ completed.

                Kinda off topic but,
                @ trodas
                Your pics are great. What camera/setup do you use.
                I've been having mixed results using a Canon PowerShot A75.

                elbrute
                Attached Files

                Comment

                  #9
                  Re: Epox 8RDA+ completed.

                  elbrute - don't complain your pics are pretty good still - it is all in the hands and lighting.
                  For example Big Pope pics are far worser. From start I thought he use some "digi-cam" built in mobile phone
                  My Nikon CoolPix 4300 is good, tough even the best camera in lame hands produce blurry ughly images It is all about in lighting and scene, not with camera - unless you got crappy Olympus or something low-cost, of course...

                  I'm much better when photographing nature (and as part of nature I mean mainly girlies), but I'm affraid my sick perverse needs aren't welcome there, so let's settle for safe nature:



                  PS. Damn, we ARE getting OT...

                  edit: image - no more attachments space
                  Last edited by trodas; 10-20-2006, 12:30 PM.
                  "It is dangerous to be right in matters on which the established authorities are wrong." - Voltaire
                  "I believe that all the people who stand to profit by a war and who help provoke it should be shot on the first day it starts..." - Hemingway my config - my caps

                  Comment

                    #10
                    Re: Epox 8RDA+ completed.

                    I shudder to think what trodas could accomplish with a DSLR
                    capacitor lab yachtmati techmati

                    Comment

                      #11
                      Re: Epox 8RDA+ completed.

                      @ trodas
                      I was hoping you didn't have some fancy studio setup. This means there's hope for me. I guess I need to get a good studio light.
                      Thanks for the feedback.
                      elbrute

                      Comment

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