Over the years there have been many a recommended piece for the computer technician’s software toolkit. Very few have managed to stand the test of time as well as Memtest86+. As of October 24, 2022, nine whole years after the last release, it looks like it will continue to be the case as Memtest86+ v6.0.0 has been released.
If you were not

Source: Hot Hardware – Call It A Comeback: Memtest86+ Returns To Scan Your DDR5 And DDR4 Memory For Defects