The computer can t turn on anything, and it can t turn off the computer, how to fix it

If the power is occasionally shut down and crashes, only press the power off button to turn on (if not, you have to unplug the power).

1) Isn't that true for your computer? If not, how did you operate before the computer could not be turned off or was slow? What hardware has been installed, what is it, can you please tell me about it? (If there is an occasional shutdown crash, please press the power on and off button to turn off the power on).

If such a problem arises, the driver is not suitable, or the system problem is caused, can you restore the system, or not reinstall the operating system, do not install software, patches, drivers, etc., and see if there is still a problem with the shutdown? If you don't install drivers, patches, and software step by step, and find something that isn't suitable, don't install it.

2) In addition, it is caused by the card, such as CPU and other hardware temperature is too high, or playing games, watching **, or operating large programs, or the computer has been used for a long time, at this time it is very stuck, you have to have some patience to wait for the computer to recover slowly, click on every page on the computer to recover slowly, and so on to return to normal after shutting down, if it is still not, just press the power on and off button to shut down (if the computer is on for too long, my experience is, Restart the computer every once in a while, release the cache, and then play better).

3) If the above methods can't solve the problem, first soft and then hard, reinstall the operating system, don't install software, patches, drivers, etc., and see if there is still a problem with the shutdown? If you don't install drivers, patches, and software step by step, and find something that isn't suitable, don't install it.

Please note: If you restore the system or reinstall it, when installing drivers, patches, software and other things, be sure not to install the things that affect your accident this time, otherwise it will be restored or reinstalled in vain.

4) In terms of hardware, such as hard disk, memory, etc., whether there is a problem, whether the temperature of CPU and other hardware is high, if it is caused by hardware problems, it is recommended to overhaul it.

The computer can't turn on and turn off the machine, what's going on, hello dear, 1First plug in the power supply to see if the power supply of the computer is normal, that is, listen to the fan sound and see if the power button is normal and bright, if the normal light fan is running normally, the power supply of the computer is normal, if the power supply button is not bright, you should consider whether to change the power supply to try. 2.

If the power supply is okay, then see if there is a problem with the monitor, and try to change to a normal monitor. 3.If the display is normal, then consider whether it is caused by the static electricity of the computer can not turn on, first unplug the power supply, and then press and hold the power on button for more than 10 seconds, press it twice, try to see if it is good, if it is not good, then look at the following method.

4.Disassemble the case, take the memory module off, take something to wipe the dust off the gold finger, and put it back in. This time press Power on and see if your computer can boot up normally.

5.If the computer still can't start normally, you should consider whether the computer's memory module is broken and the computer can't turn on, if there are two memory modules on the computer, then unplug one first, if it is not good, then press the one you just unplugged, and unplug the other one. If it boots normally, it means that the unplugged memory module cannot be used on this computer.

6.If the computer has a memory module, you need to find a good memory module to replace the original one, and then the computer restarts to try, if it doesn't work, try to replace two more. 7.

If it doesn't work, we have to consider whether there is a problem with the motherboard, we first find the CMOS zero jumper on the motherboard, return the CMOS settings to the default state, and then start it to see. If you can't find the clear jumper, remove the battery from the motherboard and install it, and the effect of clearing is the same. Try rebooting again.

8.If you can't do it, you have to consider taking the computer to the computer store for repair and inspection. If it is a notebook, it is best to take it to a computer store and have it checked by a professional.

Main steps: 1. See if the wiring is loose. 2. Clean up the memory module and reinstall it.

The specific reasons and methods are as follows:

1. Turn on the power supply, after pressing the power button, the computer has no movement, and there is a problem with the power supply.

Check whether the power cord of the power outlet is normal; Check whether there is a 5 volt standby voltage and whether the connection between the motherboard and the power supply is loose; Check whether the connection between the motherboard and the boot button is loose and whether the switch is normal;

2. Press the power button, the fan rotates, the monitor has no image, and the computer cannot work normally, then the fault lies in the main guess board, graphics card and memory.

If there is an alarm sound, the problem will be detected by self-detection. The long sound is that the memory module is not plugged in tightly;

If there is no alarm sound, it may be that the speaker is broken: check the memory, check whether the graphics card is plugged in, check whether there are foreign objects in each slot of the motherboard, check whether the jacks have oxidation and discoloration, check the CPU, and conditionally replace the power supply;

3. After booting, the display has no image, but the machine reads the hard disk, judging by the sound, the machine enters the operating system to indicate that the host is normal, and the question is on the monitor and graphics card.

Check whether the cable between the monitor and the graphics card is normal, and whether the connector is normal. Replace graphics cards and monitors, if available;

4. The graphics card and motherboard information have been displayed after booting, but the self-test process stops when it reaches a certain hardware, and there is a problem with other hardware.

Solve the improper motherboard settings using the discharge method or reset to the factory.