Memory · high

How to fixECC-MEMORY-ERROR

ECC memory correctable/uncorrectable error

What this error means

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.

Before you begin

Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 3 complete
01Check ECC error logs in BIOS or IPMI
  1. Check ECC error logs in BIOS or IPMI
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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02Replace the flagged DIMM
  1. Replace the flagged DIMM
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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03Monitor with vendor RAM diagnostic tools
  1. Monitor with vendor RAM diagnostic tools
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

  • Physical RAM degradation (aging)
  • Cosmic ray bit flip (transient)
  • Overheating causing bit instability