Hello there, I recently upgraded my comp by replacing mobo, graphics, ram, cpu pretty much the lot except for my hdd and cd drive. the problem is now it wont boot and keeps restarting, it gets to the windows logo and then goes to a blue screen for half a sec then restarts. i have windows 7 and even the repair tool doesnt help with the problem. ether my hdd has had it (i have had it for a while now) or there is a issue with my new ram? could this be a compatability issue or a fault? i have tried the windows 7 repair tool but comes up saying cant fix problems. tried restarting from a earlier time, and iv also tried to boot from the windows 7 disk but it just freezes so i can boot or install. can anyone help me try and get this new beast of a comp up and running ???