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Compaq EVO D510 - D51U Ultra-Slim Desktop

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    #1

    Compaq EVO D510 - D51U Ultra-Slim Desktop

    I purchased an used Compaq EVO D510U (Ultra-Slim Desktop) and while it boots (I can't do any more testing because I don't have an USB keyboard and can't get past POST), I noticed 3 leaking capacitors and 1 bulged one. These desktop is very compact and may not have very good cooling?

    Obviously, I want to replace these 4 Nichicon 2200uF 6.3v, 10mm diameter, 20mm height, series HM(M), 105C. See pics.

    There are 7 Nichicon 2200uF 6.3v similar ones that look good with flat tops. It seems that the sentiment (but not consensus) from some on this forum is to replace them all regardless because if one fails, they *might/will* all fail, but since my soldering skills are a "D-" right now, I'm a little bit hesitant on a board this small with a lot of SMT chips next to the capacitors.

    Opinions on "don't fix it if ain't broke"? From skimming this forum, Nichicon seems to be a good name?

    I'm looking to replace them with either the

    a) Rubycon MCZ 2200uF 6.3v 10mm diameter, 20mm height, 105C
    Rubycon part number: 6.3MCZ2200M10X20

    OR

    b) Rubycon MCZ 2200uF 10v 10mm diameter, 25mm height, 105C
    Rubycon Part number: 10MCZ2200M10X25

    My reason for choice b) is that I could potentially use this capacitor for future fixes in other devices as it has a higher voltage rating. I have read that as long as the uF is the same, you can go a bit higher on the voltage.

    Do you think I should stick with the 6.3v or go with the 10v? I may need just one 20mm height for a tight fit, but 25mm is will work for the other locations.
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    #2
    Re: Compaq EVO D510 - D51U Ultra-Slim Desktop

    Hmm, found this

    https://www.badcaps.net/forum/showpo...53&postcount=4

    and noticed that the Nichicon caps on this compaq have H0242 for date codes for 4 bad capacitors. The 7 "good" ones, but not tested, are H0243.

    So it looks like I should replace them all based on the manufacture date.

    Originally posted by retiredcaps
    Obviously, I want to replace these 4 Nichicon 2200uF 6.3v, 10mm diameter, 20mm height, series HM(M), 105C.
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      #3
      Re: Compaq EVO D510 - D51U Ultra-Slim Desktop

      yes why not
      i dont see the point to go for the 10v but there is no problem if you do

      practice makes perfect.
      capacitor lab yachtmati techmati

      Comment

        #4
        Re: Compaq EVO D510 - D51U Ultra-Slim Desktop

        Remember, 10v and 6.3v caps can be substituted for each other. The highest voltage a 10v cap can be on is 5v as the next voltage up is 12v. it is OK to use a 6.3v cap on the 5v rails.
        I love putting bad caps and flat batteries in fire and watching them explode!!

        No wonder it doesn't work! You installed the jumper wires backwards

        Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

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          #5
          Re: Compaq EVO D510 - D51U Ultra-Slim Desktop

          I recapped one of these boards last month. I ordered in multiples of 10 for each of the sizes from digikey:
          10 ea Pan FC 1000/25 P11223-ND
          10 ea Pan FM 1000/10 P12353-ND
          10 ea Pan FM 680/16 P12377-ND
          20 ea Pan FM 2200/6.3 P12344-ND

          I replaced all caps 470uf and higher. It had popped all the VRM caps next to the CPU in the SFF version of this board. Total cost: $24 plus shipping. Main complaint: USB ports kept shutting down.
          Stupidity should be a crime, especially for drivers. I have NO patience for them.

          Comment

            #6
            Re: Compaq EVO D510 - D51U Ultra-Slim Desktop

            Originally posted by delaware74b View Post
            I recapped one of these boards last month.
            Okay, delaware74b, this is embarassing. I can't figure out how to remove the motherboard. How did you do it?

            I included 2 pics. I took everything out of the machine and need to change those 4 caps circled in red.

            There are 4 solid steel/aluminum standoffs circled in yellow. The problem is that I cannot move the board sideways. I have tried pushing the board sideways, but those steel brushed standoffs have a very tight grip on the motherboard.

            I also cannot remove the power supply because the motherboard is blocking it. I can't life the power supply out because the "sides" and back are solid steel and not movable so the power supply is "trapped" in there.

            PS. I have always like Compaq's high standard of PC build in the past and this PC clearly shows it.
            Attached Files
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              #7
              Re: Compaq EVO D510 - D51U Ultra-Slim Desktop

              Originally posted by retiredcaps View Post
              I can't figure out how to remove the motherboard. How did you do it?
              And the secret I discovered today is:

              remove the heatsink and CPU.

              There are 2 screws holding down the motherboard (hidden by the heatsink). Once those are moved, the board slides out nicely.

              Got them recapped, but one cap lead broke in the desolder process - the other 7 leads were removed cleanly. Arrrgggh.

              I managed to work around it, but no amount of fresh solder, safety pin, etc would get it out. I didn't go any further since I didn't want to dislodge the solder pad from the board.

              PS. The power supply was full of Rubycon and United Chemicon caps. I didn't take a picture as the power supply is pretty small and crowded in these small form factors.

              Luckily none of the caps were bloated in the power supply otherwise that would be a nightmare to remove and solder.
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                #8
                Re: Compaq EVO D510 - D51U Ultra-Slim Desktop

                Originally posted by retiredcaps View Post
                I included 2 pics. I took everything out of the machine and need to change those 4 caps circled in red.
                Change all Nichicon HM/HN caps with bad date codes. Otherwise you might be doing this again in the near future.

                Comment

                  #9
                  Re: Compaq EVO D510 - D51U Ultra-Slim Desktop

                  I just picked up a Compaq Evo D513S over the weekend at the off lease computer store. I took the lid off to clean out the dust bunnies and lo and behold there were a dozen bad caps next to the CPU. All of the bad ones were Nichicon HM(M), date code H0306. Par for the course on those Nicicon's from the plague era. Its a good thing the store has a liberal return policy, because I'll be taking this one back!
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