Porque mi pc se inicia con f1?

Hola, porque cada vez ke enciendo mi pc debo presionar f1?
y me aparece todo esto
floppy disk (s) fail (40) warning! cpu has been changed or cpu ratio changed fail.
please re-enter cpu settings in the cmos setup and remember to save before quit?
press f8 to enable system configuration
press f9 to select booting device after post
press f1 to continue.del to enter setup

por favoooor ayuda!!ke no entiendo nada...