Originally Posted by hammer time

I get a "bad bios checksum" message at power-up.It then displays "starting bios recovery,checking for floppy ...floppy not found! checking for cd-rom,cd-rom not found." It keeps doing this sequence over and over again.I have a compaq presario S5322SS running xp home edition.This happened out of the clear blue,no previous symtoms.Any help or sugesstions would greatly be appreciated.Thanks,Ralph.