Rtl8169

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  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 30953
    • Albion

    #1

    Rtl8169

    are these chips supposed to get so hot that even with a heatsink they cant be touched??
  • diif
    Badcaps Legend
    • Feb 2014
    • 6978
    • England

    #2
    Re: Rtl8169

    0-70c operating temperature according to the data sheet.
    I wouldn't have thought it should be too hot to touch though. I've seen them in laptops and they aren't heatsinked.
    Attached Files

    Comment

    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 30953
      • Albion

      #3
      Re: Rtl8169

      hmmm.
      i have 2 pci cards.
      one netgear - naked.
      one chinese - with a sink and frankley better made.

      i tested the chinese one and just idling for 15mins without any data transfer it was generating some serious heat - but worked fine when i fired up firefox for a test.

      i think i'll dig the netgear out for a comparison.
      Last edited by stj; 09-05-2017, 11:19 AM.

      Comment

      • diif
        Badcaps Legend
        • Feb 2014
        • 6978
        • England

        #4
        Re: Rtl8169

        Interesting, let us know what you find.
        Better made ≠ better designed though.

        Comment

        • stj
          Great Sage 齊天大聖
          • Dec 2009
          • 30953
          • Albion

          #5
          Re: Rtl8169

          most things like this are all based on the reference design though.

          Comment

          • diif
            Badcaps Legend
            • Feb 2014
            • 6978
            • England

            #6
            Re: Rtl8169

            Did the chip on the Netgear get hot ?

            Comment

            • eccerr0r
              Solder Sloth
              • Nov 2012
              • 8682
              • USA

              #7
              Re: Rtl8169

              All my 8169 chips on the ethernet boards I have stay fairly cool.
              The only thing on these boards that get hot are the VRs on the boards.

              Comment

              • stj
                Great Sage 齊天大聖
                • Dec 2009
                • 30953
                • Albion

                #8
                Re: Rtl8169

                the netgear was screwed,
                but i decided to look at the regulators on the chinese one and the resistance between input and output was only a few k - very suspect.

                they are 1117's - so i'll pull then in the next couple of days and meter them off-board.

                Comment

                • eccerr0r
                  Solder Sloth
                  • Nov 2012
                  • 8682
                  • USA

                  #9
                  Re: Rtl8169

                  If it's a real rtl8169 it should only average about 0.5W - this should be enough dissipation to feel something but it should not burn your finger off nor need a heatsink (unless it must stay cool).

                  Comment

                  • Badee
                    New Member
                    • Jan 2018
                    • 7
                    • United States

                    #10
                    Re: Rtl8169

                    interesting design, i must say

                    Comment

                    • hikaruichijo
                      Senior Member
                      • Aug 2015
                      • 123
                      • Spain

                      #11
                      Re: Rtl8169

                      Realtek cards are poor performers, but only saw then overheating after a lightning strike.

                      Comment

                      • eccerr0r
                        Solder Sloth
                        • Nov 2012
                        • 8682
                        • USA

                        #12
                        Re: Rtl8169

                        I've seen a lot of hearsay that rtl8169 chips are poor performers but no actual benchmarks. I do not expect it to match top cards but from my experience with them, they are more than "poor" - they're quite acceptable for many uses. Is there a benchmark where the rtl8169 is less than 60% the speed of another ethernet solution, and how often does that benchmark happen in real life?

                        Oh, and do not count rtl8169's put on PCI 32-bit/33MHz busses... that's known to be a bottleneck...
                        Last edited by eccerr0r; 01-17-2018, 07:16 PM.

                        Comment

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