Explain your problem. Usually BSOD means incompatible or malfunctioning hardware or wrongly overclocking your processor. Simple steps to determine. Remove memory (ram), graphic add on card, sound card, network adapter, and any other peripherals. Next insert them one by one starting with the ram chips. Also this could happen becauseof an incompatible driver. Have you updated your system files lately? If so restore a system restore point. You can also try resetting the bios to factory settings. Hope this helps you.