I am tweaking icinga checks for my servers, one of the checks is monitoring CPU temperatures. Problem is that each CPU has different operating temperatures T_MAX etc. where it should actually show some alert.

In my case it's these CPU:

  • Intel(R) Xeon(R) CPU E3-1230 v6 @ 3.50GHz
  • Intel(R) Xeon(R) CPU E3-1220 v3 @ 3.10GHz
  • Intel(R) Xeon(R) CPU E3-1230 v5 @ 3.40GHz

I was looking at intel ARK website, which contains various parameters, but none of these specify optimal temperatures, or T_MAX

Is there any database that contains such information or any place where this can be looked up?

  • ARK website is the database – Ramhound Mar 11 at 12:26

You can find what you're looking for in Intel's technical resources for your Xeon chips.

  • Find the section that pertains to your particular processor. In your case Intel® Xeon® Processor E3 Family
  • Find the subsection for each separate type: Intel® Xeon® processor E3-1200 v3 product family, Intel® Xeon® processor E3-1200 v5 product family, and Intel® Xeon® processor E3-1200 v6 product family.
  • Under Technical Documents, Open up the Datasheet, Volume 1. That's where the TJMax values are written under Junction Specifications along with a host of other useful information regarding thermals.

To speed things up, in chrome I used Find (Ctrl + F) and entered in °C. You can then easily find the sections containing thermal values.

  • I will expand your answer a bit, after searching in these documents I couldn't find precise value - it actually seems each single CPU is unique and has own TjMAX factory calibrated when testing, from intel datasheet: TjMAX is factory calibrated and is not user configurable. The default value is software visible in the TEMPERATURE_TARGET (0x1A2) MSR, bits [23:16] – Petr Mar 11 at 14:51
  • it would be interesting to know how to obtain that TEMPERATURE_TARGET (0x1A2) MSR, bits [23:16] via some software (preferably Linux) I have no idea, it's not in dmi dump – Petr Mar 11 at 14:53

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