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Peek inside a Netgear GS516T

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    #1

    Peek inside a Netgear GS516T

    You know it's bad when you take apart a brand new $300 switch before you even power it up for the first time

    Taicon, Nichicon, and some other cap I can't make out the logo on.

    Delta power supply with cheap caps...

    Looks like they didn't mess around with the fans though, so it should run cool.








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    #2
    Re: Peek inside a Netgear GS516T

    This thing is fast

    I'm not even using it at Gigabit speed yet, and there is a noticeable speed increase over my old D-Link DSS-5+ switch. Probably because of packet latency?

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      #3
      Re: Peek inside a Netgear GS516T

      Nice.. How loud are the fans?? I mean if you're only going to use it at 100Mbps, i can give it a good home where 1Gbps will be it's default speed..

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        #4
        Re: Peek inside a Netgear GS516T

        It will be running at Gigabit when the rest of my new stuff comes Thursday

        I don't know how loud the fans are, because I can't hear them over my servers. But they are probably not desktop quiet. They move quite a bit of air.

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          #5
          Re: Peek inside a Netgear GS516T

          Originally posted by Maxxarcade
          Taicon, Nichicon, and some other cap I can't make out the logo on.

          Delta power supply with cheap caps...


          That cap with the logo looks to be an Ltec cap. Ltec are sometimes used In Delta PSUs for desktop PCs.
          They can be bad caps sometimes though. Personally I haven't had a bad Ltec cap in my PSUs so far.... I don't know for how long though.
          Don't find love, let love find you. That's why its called falling in love, because you don't force yourself to fall, you just fall. - Anonymous

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            #6
            Re: Peek inside a Netgear GS516T

            Interesting. The Delta P/N, "ADP40", means that it is a 40W adapter, i.e. normally an external P/S in a black plastic case. The lack of an O/P inductor (ignoring the ferrite rod inductor, which is for filtering high-frequency spikes) indicates that this probably is a flyback or "ring-choke" (Delta's terminology) design, where the the transformer primary is the "O/P inductor". The topology saves space - no big O/P inductor - and also can handle a wide-range input voltage (no voltage selector switch). It looks like the Ltec cap is after the ferrite rod inductor and thus probably isn't handling that much ripple current. My guess is that the ripple current is handled by the two blue lytics near the O/P connector. Looks like a fairly beefy bridge rectifier on the primary side next to the switch device.
            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.
            ****************************

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              #7
              Re: Peek inside a Netgear GS516T

              I just accidentally dug up one of my ancient threads while looking for info on a bigger switch. But at least I can report that this switch has been running trouble free 24/7 since I got it back in May 2007. Fans are getting noisy though.

              Now I am looking to upgrade to a used 24 port managed switch, but I can't decide what to get. I think I will start another thread for that.

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