How to check if ECC is enabled and working

via How to Check ECC RAM Functionality by Matt Bach (Puget Labs)

• Memtest86+
• # dmidecode -t memory | grep "Error Correction Type"
• ecc_check
  • source, local copy
  • $ gcc ecc_check.c -o ecc_check
  • # ./ecc_check
• values in the far-right column:

0: ECC disabled