computer types "uuuu" even with keyboard removed

[Handyman]

I have a HP omnibook xe4500 w/ pent 4 256mb ram 30g h.d. running a fresh install of windows XP home edition. the computer types "uuuuu" continuously. All diagnostics come back clean and device manager shows no errors or conflicts. Could this be caused by a BIOS error or is there a another reason for it.
                                                                                                Thanks Handyman

[Geek-9pm]

Boot a DOS floppy. What does it do?

[Handyman]

well i tried  to make a floppy for it but it is the only comp i have assembled with a floppy drive and with it continuously typing the uuuu i cant get to the hp site to burn it and it wont run from the cd drive for some reason or copy from the cd drive to the floppy
                                                     thank you for your time.   
                                                                                             Handyman