What is ECC-MEMORY-ERROR?
ECC-MEMORY-ERROR shows up as a high-severity system memory (RAM) fault. Error-Correcting Code (ECC) memory has detected a bit error in RAM. Correctable single-bit errors (SECE) are automatically fixed by ECC logic, but uncorrectable multi-bit errors (MECE) cause system crashes. Even correctable errors indicate the RAM module is degrading and should be monitored closely. ECC is common in workstations, servers, and AMD Ryzen Pro/Threadripper systems. It's most often caused by physical RAM degradation (aging), cosmic ray bit flip (transient) and overheating causing bit instability. Use the steps below to track down and fix the cause.
Common Causes
- Physical RAM degradation (aging)
- Cosmic ray bit flip (transient)
- Overheating causing bit instability
Step-by-Step Fix Guide
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1
Check ECC error logs in BIOS or IPMI
A single correctable ECC error may be transient, but repeated correctable errors on the same address indicate RAM degradation requiring replacement.
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2
Replace the flagged DIMM
Uncorrectable errors require immediate RAM replacement.
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3
Monitor with vendor RAM diagnostic tools
"Monitor with vendor RAM diagnostic tools" is the next step worth ruling out for ECC-MEMORY-ERROR.
Commands & Diagnostics
Get-WinEvent -FilterHashtable @{LogName='System'; ProviderName='edac*'} -ErrorAction SilentlyContinue
Frequently Asked Questions
ECC-MEMORY-ERROR is most often triggered by physical RAM degradation (aging). Other reports point to cosmic ray bit flip (transient) and overheating causing bit instability as contributing factors.
Most ECC-MEMORY-ERROR reports resolve after "Check ECC error logs in BIOS or IPMI". The rest of the guide above is there for the cases that don't.
ECC-MEMORY-ERROR is a high-severity error. It won't damage your PC instantly, but repeated occurrences usually point to a deeper problem worth addressing soon.
Usually. ECC-MEMORY-ERROR is fixable with the steps above; a full Windows reinstall is rarely necessary unless everything else has failed.
MemTest86 is strongly recommended if ECC-MEMORY-ERROR occurs repeatedly. It runs overnight and tests all RAM slots independently. Even a few errors in MemTest indicate faulty RAM that should be replaced.
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