Fix cudaErrorECCUncorrectable: GPU Memory Hardware Error

Overview

cudaErrorECCUncorrectable indicates uncorrectable memory errors in GPU RAM. This is a hardware issue requiring attention.

Error Messages

CUDA error: ECC uncorrectable
cudaErrorECCUncorrectable

Common Causes

• •Failing GPU memory
• •Overheating
• •Manufacturing defect
• •Age-related degradation

Solutions

nvidia-smi -q -d ECC

nvidia-smi -e 0  # May need reboot

cuda-memcheck --tool memcheck ./your_app
# Or use field diag
nvidia-smi -q -d PAGE_RETIREMENT

Prevention Tips

• ✓Monitor ECC errors regularly
• ✓Ensure adequate cooling
• ✓Consider RMA if errors persist
• ✓Keep driver updated

Code Examples

Before (Problematic)

Data corruption risk.

// Ignoring ECC errors

After (Fixed)

Handle hardware failures.

if (err == cudaErrorECCUncorrectable) {
    check_ecc_status();
    if (persistent_errors) {
        migrate_to_healthy_gpu();
    }
}

Frequently Asked Questions

Related Errors

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