Everytime I start up my computer and get to my windows 7 desktop I feel as though I am treading a minefield. My BSODs are completely random everytime and I have tried numerious different things to prevent them but all with no success. The only element that the BSODs contain that is similar is that every single one, no matter what one, always contains a dump to physical memory (System_service_exception, Memory_managament, Page_fault_in_non_paged_area etc. I've had them all) Firstly I reinstalled windows. The problem still persisted with nothing on the computer so this eradicated it being a software error (except possibly drivers as I installed those straight away). Secondly I bought a new PSU. I was running a 700W req. computer at only 550W but this also did not change anything. I ran memtest86 V4.2+ 3 times. Once with both of my RAM modules, this got to 8 Passes with 0 errors, but then recieved thousands afterwards up until I stopped it. I then tested both modules seperately but both passed 7+ tests with no errors at all. This confused me. I am no technical genius and am not confident in changing files that could potentially cause me to wipe and reinstall windows again but am willing to try just to get rid of these constant BSODs. I can post hardware and software specs along with minidumps if needed. Also occasionally my computer will hang on the BIOS if both of my RAM modules are in (I am currently using one, it's rare if I can start it with two) and if they are not in specific slots (A1 and B1 I believe, not 100% sure though).