You can choose to test all available memory or a specific amount. Testing "Maximum" is recommended for thorough results.
To ensure you are getting the authentic, malware-free version of the software, always download it directly from the source. Navigate to the official website. Search for MemTest64 in the "Downloads" section. Select the 1.0 version from the available mirrors. Download the .zip file and extract it to your desktop. Why Use MemTest64 Over Other Tools?
If your PC is suffering from the "Blue Screen of Death" (BSOD) or random freezes, MemTest64 can confirm if a physical RAM stick is dying. If the tool reports even a single error, it usually indicates that the hardware is faulty or the overclock is unstable. Step-by-Step Usage Guide techpowerup memtest64 (1.0) download techpowerup
Set the test to run for a specific number of loops or indefinitely until you manually stop it.
The log window will show the status of each "pass." You can choose to test all available memory
Traditional tools require you to flash a USB drive and reboot your computer. MemTest64 allows you to keep your browser and other applications open while you begin the diagnostic process. Stress Testing Overclocked RAM
Find if your system won't boot into Windows. Walk through RAM overclocking steps safely. Navigate to the official website
No specific minimum; it scales to your installed RAM.