Enermax Liberty 500w

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  • User
    Member
    • May 2007
    • 36

    #1

    Enermax Liberty 500w

    Well it looks like yet anther Enermax Liberty 500w recap job.
    I removed all of cTc caps and one JP ce-tur 470uF 25v cap.
    4 ctc 3300uF 10v two of them are KM Series10x30 and other two are FM Series 10x35. sort of like phony panny caps I guess. lol
    2 ctc 3300uF 16v 10x35
    1 ctc 1500uF 10v 10 x 25
    1 ctc 1000uF 10v 8 x 20
    1 JP CE-TUR 470uF 25v 8 x20

    Replacements caps are:

    2 SAMXON RS 3300uF 16v
    4 SAMXON RS 3300uF 10v shame on Enermax for not giving more space.
    I would love to use my fat 12.5mm Ruby cap, but thank goodness we have RS to do the job. At least OCZ was much more flexible in that regard. You can use 10mm or 12.5mm just fine.
    1 Ruby MBZ 1500uF 16v
    1 Ruby MCZ 1000uF 16v
    1 Ruby MBZ 470uF 16v it should be fine since according to TRODAS the max spike only gets to around 14.4v.

    None of the caps were swollen yet. While the unit is open I cleaned all of that nasty glue off the mosfets to prevent it from exploding on me. Thank you all who diagnosed this. Well the problem now is that that glue is completely dried up and ferrite beads are loose in there, also the white glue that was preventing the coil from rattling has become dry and cracked. I understand that RTV works quiet good for this sort of job.

    But serially, what is proper computer grade electronic adhesive that should be used to secure coils and beads? Or should I just shut up and get blue RTV and be done with it.

    Also while I was removing old caps I noticed that this PSU has all of the caps bridged with surface mount resistors. Can some one shine light on this? What is the purpose of having resistors bridging cap like that?

    Thank you.
  • etnietering
    Badcaps Veteran
    • Apr 2009
    • 379
    • USA

    #2
    Re: Enermax Liberty 500w

    Well I don't know anything about glue, but the resistors are there to provide a minimum load for the PSU. They're typically 100-1K ohms, and will draw a few milliamps, depending on which rail they're on. With no load at all, SMPS type power supplies have issues keeping the voltages where they're supposed to be. These provide a very small base load to keep the voltages nice when you're not running much from it.

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    • User
      Member
      • May 2007
      • 36

      #3
      Re: Enermax Liberty 500w

      Well, that sure clear is up, thank you.

      So… anybody can help me with my glue question anyone?
      I'm about to finish with this on and really hate to use something that may not do a proper job..

      Thanks.

      Comment

      • Krankshaft
        Badcaps Legend
        • Jan 2007
        • 2328
        • USA

        #4
        Re: Enermax Liberty 500w

        Most manufactures who use adhesive use that crappy stuff that turns brown and goes conductive after a few years of heat and causes trouble.

        Other manufacturers use a white substance which looks to me to be silicone caulk.

        RTV is a perfect match it's chemically inert when cured (during the cure it will release acetic acid), not electrically conductive, rated for long life, and rated for high temperatures since it's intended as a gasket maker (or dresser as I use it) on engines which get really hot.

        I had a Panasonic TV where the pins of a SMD package were coated with Gray RTV from the factory to prevent arcing.
        Elements of the past and the future combining to make something not quite as good as either.

        Comment

        • User
          Member
          • May 2007
          • 36

          #5
          Re: Enermax Liberty 500w

          Thank you!

          Comment

          • User
            Member
            • May 2007
            • 36

            #6
            Re: Enermax Liberty 500w

            Ok, new caps work great. Did some heavy load test and it holds.
            Attached Files
            Last edited by User; 02-18-2010, 08:15 PM.

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