What to do if the keyboard is not recognized

At present we use the computer keyboard mainly has two kinds, one kind is the most desktop computer uses the PS/2 interface keyboard, another kind is the USB keyboard, the keyboard is unable to recognize how to do?

　　1, PS/2 interface keyboard can not identify how to do?

For desktop computers, the most common PS/2 interface keyboard, if not recognized, the main may be keyboard failure or computer motherboard PS/2 interface is bad cause. Usually the PS/2 interface on the motherboard is rarely damaged, most of which is a problem with the keyboard, such as the internal torsion of the keyboard line, the keyboard water or the bad result.

The elimination method is very simple, we may as well take the keyboard to other computer to try whether to use, if can use, may eliminate the keyboard question, then may be the motherboard PS/2 interface problem, you may consider uses the USB keyboard or takes to overhaul.

Ps: There is also a situation, many novice friends often easy to touch, when our computer has been turned on, the newly inserted keyboard may appear unrecognized use of the situation, this situation needs to restart the computer before you can. When I first started using a computer, I often made this small mistake.

　　2, USB keyboard can not identify how to do?

For USB keyboard, currently also widely used, like many desktop computers and notebooks are also like to use a USB keyboard. So what if the USB keyboard doesn't recognize what's going on?

For the USB keyboard is very simple to use, if the USB keyboard is not recognized, please check the computer USB interface is available, if it is the desktop recommended that the USB keyboard interface to the computer host behind the USB interface to try, generally is no problem.

If not recognized, we can first use a mobile phone or u disk to connect the computer USB interface to try to see if the computer USB interface is available, in addition, we can plug in the USB keyboard to other computers to try, test the computer is the problem, or USB keyboard problems, usually unable to identify the keyboard, The main reason for the keyboard is relatively large.

But if the keyboard is not a problem, then the computer is a problem, usually this situation may be your computer USB interface power supply or damage caused, and also may be you set the motherboard BIOS, disable the computer's USB function, this situation, you can go to the BIOS setup inside check, Restore the BIOS to the default settings can be, the following extension link article has mentioned, we may wish to look.

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