Allied AL-C350ATX bad caps

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  • Rainbow
    Badcaps Legend
    • Aug 2005
    • 1375
    #1

    Allied AL-C350ATX bad caps

    Allied AL-C350ATX - another crap by DEER. Note the 2005 on the small sticker

    And let's see why it was thrown away:

    It's full of bad caps:

    This looked like a Nippon chemicon cap from top but I knew it can't be true:

    New caps: Nippon chemicon 1200uF/16V, YAGEO 2200uF/16V and one KOME 1000uF/16V

    The bad crap:


    Remember the sticker saying temperature controlled fan? That was probably the cause why it died so fast - the fan was running VERY slow and some moron placed the dummy load resistors right next to the (crappy) caps! I shorted the NTC termistor to force the fan to run at full speed - that will hopefully make it live a bit longer.
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    • PeteS in CA
      Badcaps Legend
      • Aug 2005
      • 3581
      • USA, Unsure of Planet
      #2
      Re: Allied AL-C350ATX bad caps

      Judging from those TO-220 rectifiers and their heatsink, that's probably an "honest" 200W-250W. And I'd derate those +5V, +3.3V and +12V O/Ps 30%-50% from what the label says.
      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

        • Rainbow
          Badcaps Legend
          • Aug 2005
          • 1375
          #3
          Re: Allied AL-C350ATX bad caps

          It's one of the better ones (except for the caps and slow fan originally) - the input caps are 470uF, the input filter is populated, there is no fake two-diodes-soldered-together rectifier, the fan is Foxconn and was probably covered by real fan grill (it was missing - probably someone removed it) insted of standard cut-outs.

            Comment

            • linuxguru
              Badcaps Legend
              • Apr 2005
              • 1564
              #4
              Re: Allied AL-C350ATX bad caps

              As Deers go, it's not too bad. As PeteS said, it's good for about 200 - 250 W. If you've got space for 12.5mm caps on the +12v rail, you may want to consider 15000-hour NCC 2200/16 LXF for that rail instead of the Yageos (part of the Teapo conglomerate). The NCC 1200/16 KZE is one of my favourite 10mm caps, along with the 1500/16 LXZ (the LXZ is probably more durable in a PSU). Also replace the 22 or 47 uF primary-side cap next to the auxiliary flyback, if that cap is present.

              For the TO220 12v rectifier, I found fairly inexpensive and durable subs - MOSPEC S20C200 (20A, 200V) and Vishay BYQ28E-200 (10A, 200V) for use in place of the paired 2 x FR302 normally found on the cheaper Deers.

              The fan can be replaced with an NMB/Minabea 3110-KL or similar 3" ball-bearing fan.

                Comment

                • pretorianm
                  New Member
                  • Apr 2008
                  • 1
                  #5
                  Re: Allied AL-C350ATX bad caps

                  Hello, would like to ask if someone can tell me the size of the resistors (the ones on the second attachament picture - grey one) as my has probably cooked and all colors can not be recognised (the grey one in the front on this img: http://img440.*************/img440/6...pim05109td.jpg and also the pink one under the yellow cables as well)

                  Many thanks.....

                    Comment

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