yesterday i was tweaking my bios as i went to save and boot up windows the screen went blank, i then unplugged the power supply and put it back in when i started it up it brought me to the options on how to boot i chose last known good save when i hit enter the computer freezes and i need to restart it by unplugging on the second restart i got "CMOS checksum bad" so i went to the store and bought a new one only to come to the same problem with it freezing at the boot options. NEED help please
thanks
thanks