BIOS Rom Checksum Error
Detecting DE ATAP Device
Found CD ROM, trying to boot...failed
Detecting Floppy Disk
Begins to beep, then nothing.
I have no idea what happened, how this happened, and am looking to resolve this soon since it's the holiday season and I need my gaming

Anyone lend a brother a hand? It's an Alienware ALX, 3.2GHz Dual Core with 2G Ram, Nvidia 7900 GTX, 80G Hard Drive, and some other stuff.
Tell me what you need, how to obtain it, how to solve this issue, and you'll make me the happiest gamer alive