Part ID GX270

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  • acosby
    New Member
    • Mar 2009
    • 1
    #1

    Part ID GX270

    I'm getting ready to replace some capacitors on a GX270 SFF (what a surprise, right?), but there's a point of contention that I want to settle prior to jumping off the deep end.
    Between my FHS assembly and my LPT1 connector there is what appears to be an aluminum Peltier Heat Pump. It's a long silver "comb" for lack of a better descriptor. Is this indeed a Peltier unit? If so, I'm planning to bend some of the tines out of the way to reach 3 domed caps. Any known issues with that plan of attack?
    Also, I have quite a few damaged caps on this board. (More than is supplied via the kit that our fearless leader provides.) Does anyone know where I could find a list of every cap variety required? I.E. a parts list for caps for the 270 SFF?
    Thanks in advance, and I'm sure glad to have such an incredible resource as this community on hand to assist!
    -A.
    Tags: None
    • PCBONEZ
      Grumpy Old Fart
      • Aug 2005
      • 10661
      • USA
      #2
      Re: Part ID GX270

      It's just a heatsink.
      It's attached to the MOSFETS.
      Bending it out of the way and then back shouldn't be a problem.
      Last edited by PCBONEZ; 03-23-2009, 05:44 PM.
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        Comment

        • PCBONEZ
          Grumpy Old Fart
          • Aug 2005
          • 10661
          • USA
          #3
          Re: Part ID GX270

          https://www.badcaps.net/pages.php?vid=21
          Mann-Made Global Warming.
          - We should be more concerned about the Intellectual Climate.
          -
          Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
          - Dr Seuss
          -
          You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
          -

            Comment

            • Toasty
              Badcaps Legend
              • Jul 2007
              • 4171
              #4
              Re: Part ID GX270

              It's the heatsink for the VRM power MOSFET's. It's not a peltier.

              Look like the attached pic?

              Bending them carefully, and only the ones you really need to, should not cause any problems. Support/hold the heatsink from moving while bending. You don't want to apply any torque to the mobo or the MOSFET's.
              Attached Files
              veritas odium parit

                Comment

                • severach
                  Badcaps Legend
                  • Aug 2007
                  • 1055
                  • USA
                  #5
                  Re: Part ID GX270

                  A screwdriver and a Weller 140W gun and these two legged heat sinks are out in less than a minute. It's a heat sink which will take all of 140W to melt so there's almost zero risk for damage to the motherboard from the high watt gun. Why bend the tines?
                  sig files are for morons

                    Comment

                    • shadow
                      Badcaps Veteran
                      • Feb 2007
                      • 732
                      • Australia
                      #6
                      Re: Part ID GX270

                      Wow that looks like one pain in the ass to recap!
                      Hopefully you will get this system fixed up.
                      Good luck acosby!

                      severach, you will probably need to desolder all those MOSFET's along with the heatsink. That would be a pain in the ass. Even if you remove the heatsink while leaving the MOSFET's in, you will need to apply thermal gel on all of those MOSFET's when you put the heatsink back on. That is probably not that bad. I guess if acosby has a heat gun he may try it.

                        Comment

                        • kc8adu
                          Super Moderator
                          • Nov 2003
                          • 8832
                          • U.S.A!
                          #7
                          Re: Part ID GX270

                          much easier to bend the fins,change the caps,and bend back.
                          these shortcuts are good when you have 100+ of these piled up to recap.
                          i have never seen or caused a failure due to this method.
                          advice to restrain the sink so you only bend the fins is spot on.

                            Comment

                            • Toasty
                              Badcaps Legend
                              • Jul 2007
                              • 4171
                              #8
                              Re: Part ID GX270

                              @severach
                              I echo the other replies from kc8adu & shadow. I just didn't get here fast enough.

                              My addition to the other replies would be that applying unnecessary heat to a mobo is risky at best. Bend a couple fins and be done with it.

                              Cheers!
                              Toast
                              veritas odium parit

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