Every time the computer is turned on, the mouse and external keyboard are not powered on, and you mu

The problem of plugs, try to change a jack, there are many jacks on the chassis, you can try them one by one, I used to have this problem, and it is recommended that you choose a rectangular plug when buying a keyboard and mouse.

Rebuild that system. It's better to go to the place where you bought a computer to get it. Enlightenment is not better.

1. The computer memory is loose or the gold finger is oxidized.

Loose memory modules will also cause the computer to fail to boot normally, which is a high probability and is recommended to try first. Open the side panel of the chassis and unplug the memory module, then reinstall the memory into the memory slot. If that doesn't work, it's recommended to replace the memory with a different memory slot and try it when you try to boot.

2. Discharge the motherboard button battery.

The discharge of the coin cell battery is very simple, there is a button battery on the motherboard. Pry the button battery open by hand or with a screwdriver, and the button battery will automatically pop out. At this time, we can take it out directly with our hands, put the button battery for 10 seconds, and then reinstall it in place and turn it on to test it.

If the computer does not respond when it is turned on, there is no signal, but the keyboard and mouse indicators are on, we press the "numlock" key in the keyboard area of the keyboard panel, press the indicator light once and it will turn off, and then press the indicator light to turn on, indicating that the host is operating normally. In this case, it is possible that the cable connecting the monitor to the host computer is incorrect.

The wrong cable of the monitor is a common problem encountered by users. Generally speaking, such hosts have a discrete graphics card installed, and many users plug the monitor's cable into the monitor connector on the motherboard. This is the wrong connection method, resulting in a black screen with no signal input after the computer boots up normally.

If not, it may be that the graphics card is loose, or the gold finger of the graphics card is oxidized, pull out the graphics card and wipe the gold finger with an eraser, and then reinstall it under the test, it is not ruled out that the graphics card is damaged or the ** line is damaged.

Is the keyboard and mouse wired in? Has it always been like this or has it been like this all of a sudden? Reboot and see.

It is a poor contact. The mouse and keyboard are not in good contact with the computer connection.

Check whether there is a problem with the motherboard interface, unplug the keyboard and mouse a few times to try whether the contact is poor or not, and then see if there is anything wrong with the power supply of the host.

Check the interface first to see if the connection is loose, and then restart the computer again to see if there is a problem with the system from time to time. Then enter the system information to see if you can check the mouse and keyboard, if you can't check it, 1, the mouse and keyboard are broken, 2, there is a problem with the motherboard.

1.It may be a problem with the interface, first check to see if the interface is loose, try to plug and unplug again, if it doesn't work, try to change a good mouse and keyboard, and then if it doesn't work, the interface is broken, and send it to a special maintenance department to repair.

2.Or restart the computer again to see if there is a problem with the system, and enter the system information.

Let's see if you can check the mouse and keyboard, if you can't: 1Mouse and keyboard are broken, 2There is a problem with the motherboard.

Is the output cable of the power supply not plugged in properly, and is the socket of the main chassis broken?

Try a good memory module.

Mouse and keyboard for computers.

An external hardware device that belongs to a computer.

The computer is required to connect to these later.

before it can be started normally

If you want to start without a keyboard and mouse.

It seems to be set in the DOS system.

Can't program.

It seems like it's hard to get it.

Or in the case of connecting the keyboard and mouse, it is better to start.

And it's not your computer's problem, it's that all computers are set up this way. Still is.