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    MSI 694D Pro2-IR version2

    Hey guys!

    I had to register to the site and ask your opinnion about something, because you seem to know very much about these issues...

    I have about 2 years old msi 694D pro2 motherboard (version 2). It has been working like charm, but about 6 months ago it started to do weird powerdowns once in a while.

    After few hours of use computer may (and nowdays usually will) powerdown instantly without any warning. After this computer will not turn on from powerbutton if I press it normally. If press powerbutton only little and hold it somewhere in middle for some time and then press it again computer may wake up - sometimes soon, sometimes not so soon. Usually I need to repeat this procedure few times.

    What I've figured out so far:

    1. After unexpected powerdown powerbutton doesn't work normally even I would wait hours before trying to boot it up 1st time. If I shut computer down normally, it will powerup normally, without any problems. In other words heat is no factor in here.

    2. I have replaced power supply unit with more powerful one after problems started 1st time. It didn't help.

    3. I have replaced heatsinks and cpu fans without success.

    4. I have been monitoring temperatures and voltages with motherboard monitor and there is no peaks b4 the unexpected powerdown in the logs in any values.

    5. I have been monitoring the temperature of the case and it is no factor.

    6. Computer may experience unexpected powerdown while playing some game (high load) or while browsing the internet (low load), but very rarely (or maybe not at all), while computer is totally idle (or in suspend mode).

    7. While using computer hardisks go to powersave mode and wake up normally without problems.

    8. In nutcase. Computer works like charm, but suddenly it just powers off in a second. No warnings, no slowdowns, no exact time of day, not certain amount of uptime. This is totally unpredictable but happends more and more often every day.


    For you to know:

    1. After normal shutdown powerbutton works normally and computer boots up with single quick touch of the button as it should.

    2. Powerbutton is not busted (I switched it with reset button just in case.)

    3. I have replaced powercable. Nothing changed.

    4. On last effort I placed computer behind UPS. Nothing changed.

    5. Operating system is winxp pro sp2, dual 1gig p3, 896 megs of ram.

    6. All the components in motherboard look ok with bare eye. What is hapening inside? God knows

    If you guys have any idea what is going on, throw me with reply. I've been working with computers since c64, but never heard about this kind of problem b4.

    Thank you in advance.
    Last edited by Noble; 01-17-2006, 12:21 PM.

    #2
    Re: MSI 694D Pro2-IR version2

    So none of the caps around the CPU area look domed or leaking? Sure sounds like badcaps, and I would've guessed PSU first, but you've already replaced that. Odd...

    What are the brands of the caps on the motherboard?
    Ludicrous gibs!

    Comment


      #3
      Re: MSI 694D Pro2-IR version2

      its gotta be the caps. we have a few reports from the 694d series on this forum with badcaps. check what brands of caps are on your board.

      maybe post some pics and we can spot something you didnt?

      nice comprehensive report. i think you covered most things, only memtest86 ram testing you missed.
      capacitor lab yachtmati techmati

      Comment


        #4
        Re: MSI 694D Pro2-IR version2

        One image talks more than words...
        Attached Files

        Comment


          #5
          Re: MSI 694D Pro2-IR version2

          i see chemicon KZE (good) and teapo which can be bad, failing without visible signs. do you have any other cap brands on the board?
          capacitor lab yachtmati techmati

          Comment


            #6
            Re: MSI 694D Pro2-IR version2

            Running the memory test on it now... takes a while

            As soon as I am able to get back to that computer again, I will send more pictures.

            btw... Is there any way to test those caps w/o actually removing them?

            Comment


              #7
              Re: MSI 694D Pro2-IR version2

              you need either esr meter or oscilloscope
              capacitor lab yachtmati techmati

              Comment


                #8
                Re: MSI 694D Pro2-IR version2

                Wow... orbs! Haven't seen them in awhile...
                Ludicrous gibs!

                Comment


                  #9
                  Re: MSI 694D Pro2-IR version2

                  Ok... I don't have those and can't get my hands on one :/

                  Anyways... memory test passed without errors.

                  Here are some more pictures - lemme know what you think
                  Attached Files

                  Comment


                    #10
                    Re: MSI 694D Pro2-IR version2

                    The symptoms sure sound like a badcaps issue.
                    I'd be stripping everything off the board except the basics (vga cpu ram primaryHD) for elimination sake, then trying alternate ram sticks, vga cards etc. for more elimination.

                    I see in one of the pix that there is one cap that is particularly close to what looks like a COM port plate. Is/was there much movement in any caps that are in tight situations?

                    EDIT: actually, on second glance at the first photo in the group of six you have, do I see that smaller dark green cap of the 4 on the photo have a very slight bulge at the top - It just looks like a difference in reflection, and is that a extremely small brown spot in the middle?
                    Maybe it's just my eyes.....
                    Last edited by cods69; 01-17-2006, 06:12 PM.

                    Comment


                      #11
                      Re: MSI 694D Pro2-IR version2

                      In the first pic I see a bulged Teapo cap.
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                      Comment


                        #12
                        Re: MSI 694D Pro2-IR version2

                        Yep, a bulged and also possibly vented Teapo.
                        Ludicrous gibs!

                        Comment


                          #13
                          Re: MSI 694D Pro2-IR version2

                          Originally posted by cods69
                          The symptoms sure sound like a badcaps issue.
                          I'd be stripping everything off the board except the basics (vga cpu ram primaryHD) for elimination sake, then trying alternate ram sticks, vga cards etc. for more elimination.

                          I see in one of the pix that there is one cap that is particularly close to what looks like a COM port plate. Is/was there much movement in any caps that are in tight situations?

                          EDIT: actually, on second glance at the first photo in the group of six you have, do I see that smaller dark green cap of the 4 on the photo have a very slight bulge at the top - It just looks like a difference in reflection, and is that a extremely small brown spot in the middle?
                          Maybe it's just my eyes.....
                          I doubt that any card/memory/drive could cause the powerdown/powerup failures, but I guess that I have to check that also...

                          Yes. That usb/eth connector cable is touching one of the caps, but very gently. I was really careful when I installed it in there in 1st place and made sure that I won't bend anything. There is no mechanical failure there.

                          Here is closeup picture of that cap you were talking about (?). It is the only one in entire mother board what doesn't have completelly flat surface on top. I agree that it looks slightly different than the others.

                          After making those elimination tests should I try to replace it and see what happens?

                          Thanks to all who have replied so far
                          Attached Files

                          Comment


                            #14
                            Re: MSI 694D Pro2-IR version2

                            Teapo caps are known to fail without showing any signs, and that one is certainly showing signs... I'd replace it and any other Teapo's on the board.
                            Ludicrous gibs!

                            Comment


                              #15
                              Re: MSI 694D Pro2-IR version2

                              Originally posted by Noble
                              Here is closeup picture of that cap you were talking about (?). It is the only one in entire mother board what doesn't have completelly flat surface on top. I agree that it looks slightly different than the others.
                              That is definitely a bad cap.
                              ...and so close to a CPU it's bound to cause problems.

                              Comment


                                #16
                                Re: MSI 694D Pro2-IR version2

                                Yes, that cap is most definitely bad, replace it and all other Teapo and Tayeh. Leave the light green KZE caps. And nice CPU heatsinks. If replacing caps doesn't solve your problems, try swapping out memory: I don't know if Xelo chips are good.
                                The great capacitor showdown!

                                Comment


                                  #17
                                  Re: MSI 694D Pro2-IR version2

                                  Originally posted by Chris1992
                                  Yes, that cap is most definitely bad, replace it and all other Teapo and Tayeh. Leave the light green KZE caps. And nice CPU heatsinks. If replacing caps doesn't solve your problems, try swapping out memory: I don't know if Xelo chips are good.
                                  Okies. Thanks for answers to everyone!

                                  I will start seeking for replacements. We have couple component shops in town so hopefully I will get lucky.

                                  Comment


                                    #18
                                    Re: MSI 694D Pro2-IR version2

                                    Be very careful at component shops. It is essential that you get the correct low impedance (low ESR) capacitors. The capacitance and voltage values are not enough on their own. You need to check other posts in this forum. Look for Panasonic, Nichicon, Rubycon.
                                    , United Chemicon or even Samxon brands. If in doubt please ask for help.
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