Hello. It started one month ago. it hapens randomly. my pc just crashes. no blue screen of death. it just goes black screen without worning. then it restarts but it king of loses booting device priority. then i go to BIOS and put my SSD on number 1 boot prority. i suspect that psu might be bad. psu is 8+ years old.
https://imageshack.com/i/pmnhZlTtp
https://imageshack.com/i/pmnhZlTtp