Once completed, the computer will automatically reboot into the standard Windows desktop. How to Find the Test Results
Press Windows Key + R , type mdsched.exe , and hit Enter. Choose a Restart Option:
Press Command + D on your keyboard to initiate Diagnostics mode. For Intel-Based Macs Shut down your Mac completely. Press the to turn it back on. Immediately press and hold the D key on your keyboard. how to run memory diagnostics
If you have enabled an XMP (Extreme Memory Profile), EXPO, or manual RAM overclock in your motherboard BIOS, disable it. Run the memory diagnostics at the factory-default clock speeds to see if the profile was simply unstable.
What are you using (Windows 10, Windows 11, or macOS)? Once completed, the computer will automatically reboot into
Keep the default settings, or press to change the test mix (Basic, Standard, or Extended) and cache options. Standard is sufficient for most users. Step 3: Find the Results
MemTest86 runs four consecutive "passes" by default. This process can take several hours depending on your RAM capacity. If the bottom of the screen displays any red lines, your RAM has failed the test. Method 3: Use Apple Diagnostics (for Mac Users) For Intel-Based Macs Shut down your Mac completely
Your screen will turn blue with grey text. The tool will run a series of tests (Basic, Standard, or Extended). By default, it runs the "Standard" test mix.
or other Windows 11 devices, search for "memory" in the Settings panel and select Diagnose your computer's memory problems 2. Schedule the Test Once the tool opens, you will see two primary options: Restart now and check for problems (Recommended): Your computer will restart immediately to begin the scan. Save all work before clicking this Check for problems the next time I start my computer: This schedules the scan for your next manual reboot. Microsoft Learn How to run Windows Memory Diagnostics Tool in Windows