I just built my new computer system and I have the same issue right now. The bios screen try's to start three times before windows loads. I also have windows freezing up all the time too. I have windows 7 Ultimate 64 bit with an Asus M5A99X EVO. Just a thought but I am using similar memory, Corsair Dominator 4 GB 1600mhz. Now the memory I am using is supposed to be compatible with my motherboard but if it not would that explain what is happening?