I recently bought 2GB of RAM (Corsair Twin2x2048-8500c5d) and when I tried to install it i kept getting an error so i figured it was my mobo and went out and bought a new one. (I bought a Asus p5n-e sli) When I got everything set up i turned on the computer and nothing happened.. Then I messed with a few things and the mobo and cpu started up but the screen said no signal. Now its just not starting up again and i haven't touched anything! It also started up once and then shut itself off. I had a friend come over to help me and he said everything is connected right and he does not know why it doesn't work. Now it wont detect my VC! I start my college classes tomorrow and it would help if i could get my pc working asap! Can anyone help?