Corsair TX750

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  • frogz81
    Member
    • Oct 2012
    • 31
    • Indonesia
    #1

    Corsair TX750

    Hi Guys,
    I need advise, i got TX750v1 yesterday, from previous owner he said this PSU kill soundcard's mobo and make his HDD error.
    So i need your help what part can cause the problem, where to start check?

    Check voltage:
    5Vsb : 5.1
    +5V : 5.13-5.14
    +12 : 12.12
    +3.3 : 3.41
    -12V : -12.2
    PG :5.1


    Thx.
    Tags: None
    • frogz81
      Member
      • Oct 2012
      • 31
      • Indonesia
      #2
      Re: Corsair TX750

      Update,
      After checking there are no budging Capacitor,
      which part (rail) usually causes this problems.
      thanks.

        Comment

        • stj
          Great Sage 齊天大聖
          • Dec 2009
          • 31015
          • Albion
          #3
          Re: Corsair TX750

          look for bad / cracked soldering - specially around any optoisolators.

            Comment

            • jiroy
              Badcaps Legend
              • Jun 2016
              • 2416
              • Lebanon
              #4
              Re: Corsair TX750

              I don't think this PSU is what killed a hard disk or an integrated sound card (most sound cards are wrongly driven by unqualified persons or shocked by faulty Audio inputs) . Customers in most cases report erroneous conclusions . Maybe better test it for some time on another unit and see what will come up ..

                Comment

                • frogz81
                  Member
                  • Oct 2012
                  • 31
                  • Indonesia
                  #5
                  Re: Corsair TX750

                  I have experienced, psu can cause dead mobo's sound card (replacement 3x within the warranty period ). And problem resolved after changing the PSU.

                    Comment

                    • jiroy
                      Badcaps Legend
                      • Jun 2016
                      • 2416
                      • Lebanon
                      #6
                      Re: Corsair TX750

                      Originally posted by frogz81
                      I have experienced, psu can cause dead mobo's sound card (replacement 3x within the warranty period ). And problem resolved after changing the PSU.
                      Do you mean an integrated sound card (that mean they changed the mainboard 3 times ) was replaced 3 times under warranty ? , or your're talking about 3 pci express audio cards ?

                        Comment

                        • frogz81
                          Member
                          • Oct 2012
                          • 31
                          • Indonesia
                          #7
                          Re: Corsair TX750

                          Originally posted by jiroy
                          Do you mean an integrated sound card (that mean they changed the mainboard 3 times ) was replaced 3 times under warranty ? , or your're talking about 3 pci express audio cards ?
                          Yes i mean an integrated sound card (changed the mainboard 3 times )

                            Comment

                            • jiroy
                              Badcaps Legend
                              • Jun 2016
                              • 2416
                              • Lebanon
                              #8
                              Re: Corsair TX750

                              Originally posted by frogz81
                              Yes i mean an integrated sound card (changed the mainboard 3 times )
                              I think the company seller whoever it is didn't give the right diagnosis or what was the real problem . No integrated sound card can be affected by a PSU due to many protections on the board itself . Lot of electronic components could fry , life fuses , diodes and even mosfets before an abnormal voltage reach the Audio circuit , assuming the board is new and warranty .
                              Two options here , either a faulty Audio input from the customer or the seller didn't report the real problem (maybe they don't feel obliged to) , but the PSU has nothing to do in all this .

                                Comment

                                • frogz81
                                  Member
                                  • Oct 2012
                                  • 31
                                  • Indonesia
                                  #9
                                  Re: Corsair TX750

                                  hi all,
                                  Update after take a break :
                                  it's seems the problem at 3.3v rail, the rail become 5.3 v for 6-8 second and then get normal 3.4 volt without load.
                                  which part/component i must checked. Already checked Capacitor output (12v, 5v, 3,3v rails) and in good condition capacity and esr.
                                  thx

                                    Comment

                                    • nick122
                                      Senior Member
                                      • Jul 2016
                                      • 108
                                      • Slovenia
                                      #10
                                      Re: Corsair TX750

                                      Check the 3.3v rectifier

                                        Comment

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