The computer is broken, it can t be turned on, and the computer repair expert comes. 100

Turn on your computer. Press del (some computers press F2), enter the BIOS, and restore the factory settings. If you can't or the keyboard can't be pressed.

Then turn off the computer, unplug the electronic source (pull it out at once), open the side cover of the computer, there is a battery inside, take it down, and connect the positive and negative poles of the battery with iron or other metal. This is to discharge the computer. Put the battery back in.

Turn on the power, the keyboard can be used, if it can't be used, it's the PS port burned, change the USP keyboard.

Is it that the keyboard cable of the case is loose and the keyboard has a light? It's not just a problem with the keyboard cable, if the corners of the interface are broken, see if there is something damaged in the C drive, and reinstall the system.

When you don't enter the system, your keyboard is not easy to use?

In that case, you'll have to get someone to check the motherboard.

Try a different system disk.

1. If the computer can't be turned on, you can try to clean up the dust inside the case, too much dust may cause the computer to crash frequently. Or plug and unplug the hardware inside the case, especially the memory modules, and then try to boot it again. If you still can't turn on the machine, then open the back cover of the case, remove the motherboard battery, discharge the battery to restore the factory settings, and try to turn on the computer again after the above operations, and you can successfully boot it under normal circumstances.

2. First of all, according to the specific situation analysis, if there is no power response directly, then check whether there is a power supply, poor contact, hardware and other problems, go to the second step, if it is not possible to enter the system may be an operating system or software problem to the third step.

3. Check whether there is a power supply problem, first see if the power supply is not plugged in well or there is a problem with the plug, if you are using a battery, then plug in the power supply and try again. You can go to a friend or go to a computer repair shop or sales store to find the same model of power supply to try it. After replugging the power supply, press the power button again, and if it still can't be turned on, then press it for a while.

If you change someone else's power supply to turn on, it means that there is a problem with the power supply, if it proves that there is no problem with the power supply, it may be the hardware reason, go to the fifth step.

4. Enter the last correct configuration to adjust, turn on and press and hold F8, enter the advanced options page, select "The latest correct configuration", and then press Enter. If it can enter the system, it may be caused by viruses, incompatible hardware drivers with the system, or operating systems. After entering the system, run the anti-virus software, check and kill the virus, if there is a virus, restart the computer after the anti-virus, if it is not normal, it may be caused by the incompatibility of the device driver and the program, delete the graphics card, network card and other drivers, restart it after removing the driver, if there is still a problem, then go to the next step.

5. Repair, install or reinstall the system, set "Optical Drive as the first boot device" in the BIOS, then insert the system disk, and press the R button to "repair and install". If the fault persists, at the beginning of the system, select "One-click Ghost Restore System" or use the system disk to reinstall the system.

6. Check whether there is a hardware problem, disassemble the notebook to see if the hardware is loose, generally the hardware is not plugged in well, there will be an alarm sound, the long sound continues to ring to indicate that the memory module is not plugged in tightly, one long and one short means that there is a problem with the memory or motherboard, and one long and two short means that the graphics card is wrong. If there is too much dust inside the notebook, it is best to clean it up first. In addition, pay attention to whether it is caused by the new hardware, if it is normal before the replacement of the hardware, and it is not normal after the replacement, then check whether it is compatible.

If it doesn't start at this time, it's best to send it for repair, and a professional will check whether there is a problem with your hardware one by one.

1. Check the connection line between the monitor and the host first, many times the fault of the computer wireless is that the connection line is loose and the contact is poor, at this time, you only need to re-insert the connection line and tighten the screws.

2. If you rule out the problem of the cable, you should check whether the display is broken, turn on the power of the display separately to test whether it is normal, and replace a monitor with a monitor for verification. The failure of the display is generally a problem with the lamp and the power strip.

3. Memory module problems, there are 30%-40% of the problems that can't be turned on are caused by memory sticks, it is generally recommended to clean the memory module slot, and then re-insert the memory module or wipe the gold finger with a clean eraser, because the gold finger has the possibility of oxidation.

4. The motherboard is static, in this case, you can turn off the power first, short-circuit the CMOS jumper, and if you don't know the CMOS jumper, you can directly deduct the button cell battery on the motherboard, put it for a minute and then install it back and restart.

5. Graphics card problem, if your computer is a dual graphics card, you can unplug the independent graphics card first, try it with an integrated graphics card, if there is only a single graphics card, you can find a separate graphics card to try, pay attention to some AMD machines, such as x840 and the like, its CPU is not integrated with the integrated graphics card, the integrated graphics on the motherboard are not lit up the machine, there is only one independent graphics card, this situation should be distinguished from the dual graphics card.

6. Motherboard problems, the probability of the chip on the motherboard is generally low, most of them are caused by the power supply problem and the motherboard capacitor burst, at this time the capacitor can be replaced, if the chip is damaged, it is generally impossible to repair, the old motherboard due to the discontinuation, you can go to a treasure to find a well-known brand of second-hand motherboard to replace, not too old motherboard is still in production It is recommended to replace the new brand motherboard.

7. Power failure, caused by the power supply can not be turned on, accounting for 20%-30% in the actual measurement, insufficient power supply or power damage is also a common problem, you can replace the good power supply for testing.

See what the fault is. If the motherboard chip is damaged, there is no value in repairing it.

Of course you can fix it.

Not a big deal.

In fact, there are many reasons why it can't be turned on, such as no power and memory sticks, which need to be checked one by one, if there are no problems, you need to take it to the repair shop to check.