Question
For an AMD EPYC system, what are these functions in the BIOS menu options? Can you explain them in more detail?
  • NX Mode: This setting Enables or Disables the no-execute page protection function.
  • SVM Mode: This setting Enables or Disables CPU Virtualization.
  • CPB Mode: This sets the CPB mode to Auto or Disable.
  • C6 Mode: Use this setting to Enable or Disable the C6 Mode
  • Global C State Control
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Answer
  • NX Mode: Similar to Intel eXecute Disable (XD), AMD BIOS calls it No eXecute bit (NX); a technology used in processors to prevent execution of certain types of code.
  • SVM Mode: Similar to Intel VT-d, AMD EPYC calls it Secure Virtual Machine (SVM)
  • CPB Mode: It's for AMD CPU auto frequency adjustment function.
  • C6 Mode: Means deep down, BIOS will automatically disable CPU core and cache for power saving.
  • Global C-state Control: Affects power saving mode and efficiency.
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FAQ ID:
26918
Related Category / Keyword:
BIOS:
AMI BIOS
Date Posted:
12/01/17
Code:
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