Hi, Request you to please help me to fix this error which i am facing since long time. I am getting error as Blue dump screen IRQL not less than or equal and sometime Page fault in non paged area. I have removed my Ram Cleaned and reinstalled and tried different RAM still facing same issue. Hard Disk also changed and still facing issue but frequency of error is less. Looked device manager and cannot see any exclamation mark under any driver. Changed Sata Cable but no use. How we come to know where is the issue. Please help me out to fix this. I have attached dump file in zip. My system specifications are: Operating system : Windows XP service pack 2 Ram 512 MB Hard Disk 160 GM Pentium ®D CPU 3.40 GHZ. I really appreciate your help. Thanks in Advance!