Northbridge error messages are reported in /var/log/messages file.

Solution Verified - Updated -


  • Error message in /var/log/messages Northbridge Error (node 1, core 3): L3 ECC data cache error
  • The following errors are logged by syslog in /var/log/messages.
kernel: [Hardware Error]: MC4_STATUS[-|CE|MiscV|-|AddrV|CECC]: 0x9c06c021001c011b
kernel: [Hardware Error]:      MC4_ADDR: 0x0000000f2725b04c
kernel: [Hardware Error]: Northbridge Error (node 1, core 0): L3 ECC data cache error.
kernel: [Hardware Error]: cache level: L3/GEN, tx: GEN, mem-tx: RD
kernel: [Hardware Error]: Machine check events logged 
HARDWARE ERROR. This is *NOT* a software problem!
Please contact your hardware vendor
CPU 1 4 northbridge TSC 176b228c06bb2d0 [at 2200 Mhz 554 days 20:5:33 uptime (unreliable)]
MISC e00c0ffe01000000 ADDR 254e40 
  Northbridge NB Array Error
       bit32 = err cpu0
       bit43 = L3 subcache in error bit 1
       bit46 = corrected ecc error
       bit56 = res24
       bit59 = misc error valid
  memory/cache error 'generic read mem transaction, generic transaction, level generic'
STATUS 9d5448a1001c011b MCGSTATUS 0


  • Red Hat Enterprise Linux Server 5
  • Red Hat Enterprise Linux Server 6

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