If this is the spanish version you will have to reflash the BIOS.
The BIOS has been crippled and you won't be able to boot with a CDROM or floppy, also it will not boot any other type of HD since there is something on the hard drive that the BIOS needs to boot.
Some people have managed to overwrite the BIOS with an uncrippled version. If you read some of the messages in this thread you should be able to figure it out, I took the easy way out and I had my motherboard sent to someone who flash the uncrippled BIOS. Onto my system.