Is my Intel Cascade Lake SP CPU supported by Red Hat Enterprise Linux?

Updated -

Environment

  • Intel Purley Platform System
  • Intel Cascade Lake SP CPU
  • Intel Cascade Lake SP Refresh CPU
  • Red Hat Enterprise Linux 6/7/8

Issue

  • I've updated the CPU in my Purley Server Platform system from Skylake SP to Cascade Lake SP. Am I supported?
  • Does my Purley Server Platform system running RHEL 7.X support the new Cascade Lake SP CPU?
  • Is the Cascade Lake SP Refresh CPU supported?
  • What versions of RHEL support my new Cascade Lake SP CPU?

Resolution

The Cascade Lake SP and Cascade Lake SP Refresh CPUs, per Intel, are a drop-in compatible CPU for Purley platform systems. Red Hat supports these CPUs with the following releases:

  • Red Hat Enterprise Linux 7.6 and later
  • Red Hat Enterprise Linux 8.0 and later

Red Hat Enterprise Linux 6 and releases of Red Hat Enterprise Linux 7 prior to Update 6 are not supported for running on Cascade Lake SP or Cascade Lake SP Refresh CPUs. Support for Cascade Lake SP and Cascade Lake SP Refresh CPUs in Red Hat Enterprise Linux 6 will not be available. Users with Purley Platform systems and Skylake SP CPUs looking to install to Cascade Lake SP or Cascade Lake SP Refresh CPUs will need to evaluate upgrading to the Red Hat Enterprise Linux 7 Update 6 or 8.0 or later where support for these CPUs is available.

Note : Systems running Red Hat Enterprise Linux 7.6 GA will emit "Warning: Intel Processor..." at boot. This has been addressed in an errata. See KCS 3790581 for details.

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