One socket works, one doesn't

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  • bobrosco
    New Member
    • Jun 2005
    • 9

    #1

    One socket works, one doesn't

    I'm a newbie, but I already appreciate the site!

    I recently became the proud owner of an old Abit VP6 that supposedly worked before I got it. So I plug her in to take for a test drive and within the first few seconds, two caps popped (EC 30 and 31 if it matters). I read through the forums here and ventured to replace to two with some Radio Shack 1000uF 35V since they were easy to come by. Now one socket posts and will boot fine, but the other socket won't post at all. I have 2 PIII 1.0 identical processors and each will boot in the "working" socket fine, but the board won't post at all once a processor is in the "other" socket.

    So my question is, would it be a good investment to recap the board and potentially solve my problem? or should I look for something else as the cause? or is this just bad news?
  • bushytails
    Moderator
    • Dec 2004
    • 217

    #2
    Re: One socket works, one doesn't

    Replace all the caps... including the two you put on. They're probably not low ESR capacitors, and can be almost as bad as bad capacitors...

    I don't know about VP6s, but on MSI 694d boards (also dual p3), the second cpu socket going awol is one of the first signs of bad caps.

    --Randy

    Comment

    • Chris1992
      Badcaps Veteran
      • Apr 2005
      • 561

      #3
      Re: One socket works, one doesn't

      although Willawake says that the board <i>will</i> post with non-low-esr caps, I would replace all caps including the 2 new ones you put on. And maybe you have to enable DP capability in CMOS, I dunno. Never had a vp6.
      The great capacitor showdown!

      Comment

      • bobrosco
        New Member
        • Jun 2005
        • 9

        #4
        Re: One socket works, one doesn't

        Thanks! No settings in the BIOS that I've seen or read about.

        I read that Mouser and Digikey were popular places to get new caps, but I'm having trouble locating low ESR caps that I need:
        15 1500uF 6.3V
        4 1000uF 16V
        4 1000uF 10V

        I searched "low ESR" and "computer grade" on the other sites listed in the FAQ too. Any suggestions where I can find my replacements in the US?
        Last edited by bobrosco; 06-26-2005, 02:01 PM.

        Comment

        • willawake
          Super Modulator
          • Nov 2003
          • 8457
          • Greece

          #5
          Re: One socket works, one doesn't

          https://www.badcaps.net/forum/showth...hlight=digikey

          North America - Allied Electronics - http://www.alliedelec.com/
          North America - Computek - http://www.computekinc.us/
          North America - Digikey - http://www.digikey.com/
          North America - Mouser - http://www.mouser.com/
          North America - Newark In One - http://www.newark.com/

          look for panasonic FC or Rubycon ZL. otherwise Topcat can sell you Rubycon MBZ which are superior caps you will not find at these sources. http://www.badcaps.net
          capacitor lab yachtmati techmati

          Comment

          • bobrosco
            New Member
            • Jun 2005
            • 9

            #6
            Re: One socket works, one doesn't

            Thanks for the help. I ordered the panasonics from digikey, and once I get it finished, I'll post the (hopefully good) results.

            Comment

            • bobrosco
              New Member
              • Jun 2005
              • 9

              #7
              Re: One socket works, one doesn't

              Well... I replaced the 23 capacitors on the board with the panasonic fc series and I still get the same results. One socket posts fine, the other not at all. Any other suggestions?

              Comment

              • bobrosco
                New Member
                • Jun 2005
                • 9

                #8
                Re: One socket works, one doesn't

                New info:
                While checking the non working socket, I noticed the cpu that was in the socket has one pin that is just barely bent towards the center of the cpu. I can easily straighten it, but once I try to "lock" the socket, it's bent again. Is there a way to check to see what's causing this?

                Comment

                • bushytails
                  Moderator
                  • Dec 2004
                  • 217

                  #9
                  Re: One socket works, one doesn't

                  check for the remains of a broken off pin in the socket, or other damage.

                  --Randy

                  Comment

                  • bobrosco
                    New Member
                    • Jun 2005
                    • 9

                    #10
                    Re: One socket works, one doesn't

                    Found the problem

                    The socket had some superglue? or something clear and hard down in around the pins. I removed the upper part of the socket and could see it down in there. I removed the rest of the socket and the pins were broken and bent, so that's beyond my skill to mess with.

                    So now I have a VP6 with new caps and can only be a single.

                    Grrr....

                    Comment

                    • kc8adu
                      Super Moderator
                      • Nov 2003
                      • 8832
                      • U.S.A!

                      #11
                      Re: One socket works, one doesn't

                      i have replaced sockets on these.bet tc has too.
                      dont give up yet!

                      Comment

                      • bushytails
                        Moderator
                        • Dec 2004
                        • 217

                        #12
                        Re: One socket works, one doesn't

                        That's going to be a joy to desolder...

                        --Randy

                        Comment

                        • bobrosco
                          New Member
                          • Jun 2005
                          • 9

                          #13
                          Re: One socket works, one doesn't

                          Even if I can manage to desolder them, can you only get replacement pins from a donor? I guess you'd only have to replace the broken and bent ones, so that might be managable. Also, the plastic that covers the pins and holds the cpu in place isn't in great shape, I'd probably replace that if I'm even considering going through that kind of work. Where can you get those?

                          Comment

                          • Chris1992
                            Badcaps Veteran
                            • Apr 2005
                            • 561

                            #14
                            Re: One socket works, one doesn't

                            I'd try digikey; if you can get pci sockets than I'd assume you can get PGA370 sockets.
                            The great capacitor showdown!

                            Comment

                            • Topcat
                              The Boss Stooge
                              • Oct 2003
                              • 16956
                              • United States

                              #15
                              Re: One socket works, one doesn't

                              Originally posted by kc8adu
                              i have replaced sockets on these.bet tc has too.
                              dont give up yet!
                              I have. NOT fun!!! Took forever and a day. A VP6 is well worth the effort tho. Good Luck!
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                              • bobrosco
                                New Member
                                • Jun 2005
                                • 9

                                #16
                                Re: One socket works, one doesn't

                                It seems that digikey, mouser, newark, and allied electronics are all out. I'd have to get 90 or so to make the minimum order. Does that mean I need a donor?

                                Comment

                                • Chris1992
                                  Badcaps Veteran
                                  • Apr 2005
                                  • 561

                                  #17
                                  Re: One socket works, one doesn't

                                  Yup. Talk to your local computer store, see if they have a dead s370 board.
                                  The great capacitor showdown!

                                  Comment

                                  • bobrosco
                                    New Member
                                    • Jun 2005
                                    • 9

                                    #18
                                    Re: One socket works, one doesn't

                                    Thanks, found one. There's a lot of pins to unsolder...

                                    Comment

                                    • Topcat
                                      The Boss Stooge
                                      • Oct 2003
                                      • 16956
                                      • United States

                                      #19
                                      Re: One socket works, one doesn't

                                      Originally posted by bobrosco
                                      Thanks, found one. There's a lot of pins to unsolder...
                                      Yes there is. Take your time and be patient. Don't pry hard on it when all the leads are desoldered. If a lead is still attached, you'll ruin the board if you rip it out. Use a small flat screwdriver and gently lift on it. By feel, it will tell you where it's hanging up, and you can then remove any remaining solder from that lead. Soldering the new one in is a snap, removing the old one is the hard part.

                                      Good Luck!
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                                      Motherboard Repair Services

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                                      http://folding.stanford.edu/
                                      Team : 49813
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