Hello, I cleaned my PC case with compressed air yesterday,because it was full of dust,especially the CPU fan. After that I turned it on and it worked well. Today,I turned the PC on,and all of a sudden the monitor got black and the PC freezed. I restarted it and it worked well,but after 40 minutes,the monitor got black and the PC freezed again so I had to manually restart it again. I would please you to help me resolve this issue. Weiterlesen...