Hello, I just purchased a new n2u400-a motherboard. I hooked up all the cables, put in some new ram and when it booted up it said cmos checksum error - defaults loaded. So after that it asked me if I wanted to start windows normally or safe mode. Either one I choose it tries to do something and a blue screen pops up really fast and goes away and the system reboots. Any ideas what the problem could be? I have kingston ddr 512mb 3200 ram (400mhz), and a AMD sempron 2800+ cpu. Thank you in advance for any input you may be able to give me.