Memory Diag Best: Windows

| Test Level | Duration | Pattern Coverage | Use Case | |------------|----------|------------------|-----------| | | ~5-10 min | MATS+ (Memory Address Test), INVC (Inverse Cache) | Quick check; low sensitivity. | | Standard (Default) | ~20-40 min | LRAND (Random pattern), Stride6 (6-bit stride), WMATS+ (Write MATS), WINVC | General diagnostics. Detects most common failures. | | Extended | 2-8+ hours | All Standard tests + MATS++ (cache disabled), Stride38, WSride, CHKMR3 | Thorough validation for intermittent or temperature-sensitive faults. |

# Trigger diagnostic on next boot Start-Process mdsched.exe -ArgumentList "/scheduled" $log = Get-WinEvent -LogName System | Where-Object $_.ProviderName -eq "MemoryDiagnostics-Results" $log[0].Message windows memory diag

For enterprise deployment, consider using logs combined with WMD for memory fault isolation. Conclusion Windows Memory Diagnostic is a competent, lightweight memory tester for initial triage. Its tight integration with Windows and lack of external media make it convenient, but its limited pattern set and absence of per-module reporting mean it should not be the sole tool for memory validation in critical environments. For definitive RAM testing, complement WMD with MemTest86 and individual DIMM isolation. | Test Level | Duration | Pattern Coverage