I have a problem with my pc, it restarts randomly, the temperature is ok, cleaned of dust, drivers - windows upToDate I have not downloaded third party driver software through Windows everything updated, viruses - malware, etc. no, I reinstalled the pc, tested ram with memtest86, each one placed separately on separate slots, no problems, I made a benchmark on the cpu, gpu has no problem, I tried only with the mouse and only the keyboard, I thought some of the slots would not be a problem but no. Now I use one ram because when I use both restarts it does much more often even as soon as I turn on the pc, on windows events it gives me a kernel 41 critical error. I probably think it is the power supply, I have a cooler master mwe gold 650 modular, but could be motherboard i really don't know someone told me could be memory frequency on bios or updating bios etc. When pc is off for 18-20 hours runs few hours but once restart will restart at least 5 times in next 10 min.