I have also other infos to help you help me:
- The Mobo and CPU were from my older pc, it had these kind of problems before but it fixed itself(it didn't started for 24h, crashed randomly etch...)
- The rams are ok, they were from my older pc and they never had problems
- The Psu is new so I think it shouldbe ok
- CPU is amd 955 be
So, which is the best guess? Mobo,CPU or Psu?