I installed a few days ago a new motherboard, CPU and RAM in my computer, practically building it anew. The operating system I installed is openSUSE.
After that my PC doesn't come back from suspend mode by using neither the keyboard or mouse. Furthermore 3 or four times after leaving my PC turned on all night, I found it in the morning completely frozen (mouse pointer frozen, time frozen 5 hours before the current time etc).
Furthermore, while working the PC froze completely out of the sudden for a minute and then it resumed working, but in the task manager's graph I saw the CPU cores jumping like crazy.
Moreover 3 times while working, out of the blue, the PC restarted and while booting it showed the following messages: