Hello Cpc2004, We already talked before http://www.techspot.com/vb/showthread.php?t=32079&goto=newpost, and the problem persists with the same symptoms. I tried 2 different memory´s in every slot of my MB, downclocked the memory but the error is still there and it´s always the same. I went to a store to analyse my computer, and they tested my memory and my grafichs card and they were ok. When they tested my HD they found 2 bad sectors and they advice me to replace my HD. I asked them if they thought that the BSOD was because of the HD and they said yes. I need your advice : Do you think that some of this problems (Page_Fault_In_Nonpaged_Area) are related to the HD ? . I´m asking this because i saw in this site and others dozens of posts regarding this problem, and i never saw one referring to the HD. What do you think ? I attached the last 6 minidumps. Thank you Regards.