Although I touch the point of a linux "known to work" machine below, what are the odds that is not linux but a problem with hardware? memory would be my first g

Although I touch the point of a linux "known to work" machine below, what are the odds that is not linux but a problem with hardware? memory would be my first guess. Also, may you want to share more information about your set up? machine, specs? UEFI can play a big role on your problems.