Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    Xeon quad core proc temps..weird readings.

    Scheduled Pinned Locked Moved Hardware
    3 Posts 3 Posters 842 Views
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • G
      genic
      last edited by

      attached is a picture of my dashboard with the temp readings from dual xeon quad cores, but they are very weird.

      they both have the exact same setup –- same heatskin, same type of fan attached to heatskin, fans running at the same rpm's, and the procs are maybe 10mm apart from each other on the motherboard.

      shrug one proc runs perfectly with the temp readings (all four core temps go up and down depending on the time of day in the datacenter). the other proc runs with variable temp readings but much different than the other proc (also depending on the time of the day) wtf?

      anyone have any ideas here? i have seen this before, but it was different hardware. i specifically rewired the fans attached to the proc's to run at the same rpm's...so in theory they should run the same. ...in theory.

      ???
      proc_core_temps.png
      proc_core_temps.png_thumb

      1 Reply Last reply Reply Quote 0
      • J
        jasonlitka
        last edited by

        Airflow is rarely uniform throughout a case so temps will not be identical.  Those two cores could be higher because they're the ones that are doing the work.

        I can break anything.

        1 Reply Last reply Reply Quote 0
        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Check that both CPUs are reporting the same tjmax. I can remember exactly what the sysctl is though.

          A 10C difference can be explained by dried thermal paste.

          Steve

          1 Reply Last reply Reply Quote 0
          • First post
            Last post
          Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.