howto cooling mcx354a nic card

Discussion in 'Networking' started by Freebsd1976, Oct 31, 2018.

  1. Freebsd1976

    Freebsd1976 New Member

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    install a mcx354a nic in hp z230 sff , nic idle temperature is 67c ,i think this is a bit high and what to cooling nic, but the question is there is how to attach cooling fan on nic heat sink?
    anyone try this before?
     
    #1
  2. llowrey

    llowrey New Member

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    Check out my solution for a CX4: 100GbE Mellanox 180 USD. TL/: slim heatsink+fan and high temp zip-ties.

    cx4 hsf.png

    It looks like your board only has 2 mounting holes for the heatsink so my solution might not work well.
     
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  3. Freebsd1976

    Freebsd1976 New Member

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    yes only two hole in the middle of heat sink ,try find other way to attach fan , those are i found on taobao,but don’t know which way is better
    捕获1.PNG 捕获2.PNG 捕获3.PNG
    the first is water cooling mount tool, the other two are additional graphic card cool
     
    #3
    Last edited: Oct 31, 2018
  4. i386

    i386 Well-Known Member

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    Where did you get that temeperature?
    If that's from the mellanox tools than It's the temperature of the controller/asic and that temperature can go up way higher.

    From the spec sheet* the cx-3 will work in envionments with 0-55 °c ambient temperature.

    * http://www.mellanox.com/related-doc..._Dual_QSFP+_Port_Adapter_Card_User_Manual.pdf
     
    #4
  5. Freebsd1976

    Freebsd1976 New Member

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    mget_temp_get.exe can get nic temperature , it include in mellanox winmft
     
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    Last edited: Nov 1, 2018
  6. oddball

    oddball Active Member

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    Where does it sit in the server? I've found PCI placement makes a big difference.

    In a Cisco UCS 240 I have there are two PCI cards. One sits directly above a dual 40G NIC (generates a LOT of heat) and right now it's 31C. The Intel AIC card directly above it, they're a few cm apart is 14C.

    The difference in the two cards is that the Intel AIC has space above it where air moves over from front to back from the case fans. The Optane under the AIC doesn't have as much room for airflow. So the air is trapped and warmer.

    Before making modifications to the NIC I'd move the cards around and see if placement makes a difference.
     
    #6
  7. Freebsd1976

    Freebsd1976 New Member

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    Nic install in a hp z230 sff workstation , which have one fan cooling cpu, in pci area there is no fan or airflow , so I need add additional fan attach to nic to cooling, I think in this z230 sff this the only way to cooling the nic
     
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  8. Freebsd1976

    Freebsd1976 New Member

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    finally directly attach an 6cm fan to heat sink , temprature drop from 68 to 42c, also buy a pci slot fan ,will report result the difference when it arrives
     
    #8
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