The new hard disk, keyboard rather than later, the police

To buy a new hard disk and memory, the system does not start when the self-loading
show cmos checksun error-default load.
A warning sound, light and normal mouse, keyboard to work.For the same USB port.
Cmos settings wrong suspect, for some time off after the battery and then plug in, the situation remains.
The most important thing is not to use the keyboard ..
trouble you do not let me modify the BIOS, because there is no way, Therefore, there is no way to operate.

No electrical or battery-board battery near the damp crystal aging (motherboard replacement battery after drying Sun), there is an error message, the keyboard can not be used, the keyboard line is most likely to be short circuit, for the keyboard is useless if the board I / O chip damage (Win 8237), general science and technology city of 20 yuan to repair