Press f1 or del key my keyboard not work

Main Processor : Intel Pentium. (r) 4 2.40GHz
Memory Testing : 1310720k Ok

Primary master :ST310212A 3.02
Primary slave : none
Secondary master : none
Secondary slave : none

Primary IDE Channel No 80 conductor cable installed

cmos checksum error - def loaded
Warning CPU has been changed or cpu ratio change fail
Please re-enter cpu settings in cmos setup

F1 to continue del to setup

Someone help me if i try to press f1 or del key my keyboard not work
Ps2 or usb keyboard not work. I try to reset cmos change memory but its not work please help me . Sorry for my bad/Rip english some one help me pleaseee