Delta Serverpower 450W Ex (CAA-450BT A) went pop...

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  • tleu8472
    Member
    • Dec 2011
    • 36
    #1

    Delta Serverpower 450W Ex (CAA-450BT A) went pop...

    Delta Serverpower 450W Ex (CAA-450BT A). Was browsing the Web on my Ivy Bridge system when there was a loud pop from the power supply and the system shut down. I do not recall any smoke coming from the unit. I took it apart but there is no sign of damage. I think only the fuse blew. I would like to identify the problem that caused the fuse to blow. Any ideas? It has only been in use for less than two years.
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    • ben7
      Capaholic
      • Jan 2011
      • 4059
      • USA
      #2
      Re: Delta Serverpower 450W Ex (CAA-450BT A) went pop...

      Originally posted by tleu8472
      Delta Serverpower 450W Ex (CAA-450BT A). Was browsing the Web on my Ivy Bridge system when there was a loud pop from the power supply and the system shut down. I do not recall any smoke coming from the unit. I took it apart but there is no sign of damage. I think only the fuse blew. I would like to identify the problem that caused the fuse to blow. Any ideas? It has only been in use for less than two years.
      Check the transistors on the primary side heatsink. (near the two big capacitors)
      Muh-soggy-knee

        Comment

        • senz_90
          Badcaps Veteran
          • Aug 2013
          • 328
          • Indonesia
          #3
          Re: Delta Serverpower 450W Ex (CAA-450BT A) went pop...

          also some resistor and caps near the transistor. that is more likely failed when transistor is defect.
          "There is no shortcut to be successful. No pain, no gain."

          Best Regards
          Rudi
          Thank You

            Comment

            • PeteS in CA
              Badcaps Legend
              • Aug 2005
              • 3581
              • USA, Unsure of Planet
              #4
              Re: Delta Serverpower 450W Ex (CAA-450BT A) went pop...

              Maybe check to see if one/both of the MOVs across the big lytics shorted.
              PeteS in CA

              Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
              ****************************
              To kill personal responsibility, initiative or success, punish it by taxing it. To encourage irresponsibility, improvidence, dependence and failure, reward it by subsidizing it.
              ****************************

                Comment

                • Behemot
                  Badcaps Legend
                  • Dec 2009
                  • 4845
                  • CZ
                  #5
                  Re: Delta Serverpower 450W Ex (CAA-450BT A) went pop...

                  …or opened. Don't see any thermistor so you can probably skip it, if there is some, check it as well.
                  Less jewellery, more gold into electrotech industry! Half of the computer problems is caused by bad contacts

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