| Tool | Why use it | |------|-------------| | (free) | More exhaustive, boots from USB, supports all RAM types, better for intermittent errors. | | PassMark MemTest86 Pro | Paid – adds reporting, automation, ECC testing. | | Prime95 (Blend test) | Tests RAM + CPU IMC under heavy thermal load. | | Windows built-in tool | Convenient, no USB required, good for quick checks. |
To apply settings: Press F10 after changes.
Understanding the output of mdsched.exe is critical for troubleshooting.
Windows Memory Diagnostic () is a built-in Microsoft utility used to identify hardware issues in a computer's Random Access Memory (RAM). It methodically tests memory cells to ensure they can store and retrieve data correctly, helping troubleshoot system instability, frequent crashes, or "Blue Screen of Death" (BSOD) errors. How to Launch mdsched.exe
