So, in the last couple of days I've been experiencing 1 to 2 crashes per day. I don't know what the cause is but I think it's the memory.
When crash occurs monitor doesn't go black but instead keeps the last screen before the crash. For example, if I'm on my desktop screen and pc crashes, monitor would display my desktop until I restart my pc.
Weird thing is that all fans are working. PSU fan, CPU and GPU fans and case fans are working. Even weirdest thing is that my keyboard backlight turns off, but only if I press a key.