Desktop or laptop? More information about the PC would help. How much memory (RAM, not size of hard disk) was fitted? Can you remove one memory card and still leave some in the PC and try again?
Try running Memtest86+ click here
OnePlus 5 review
Alice Saey's mesmerising animation for Dutch singer Mark Lotterman
iPad Pro 10.5in (2017) review
Comment booster votre iPhone ?