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It is best to see if the power line is in contact with the practice (it is best to change the power cord to try), and then check the host, disassemble the main chassis for memory and graphics card dust cleaning, if necessary, you can change the power box to try it, and whether the connection plug between the host boot switch and the motherboard is loose.
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There are many such things, first of all, the boot button is broken, the second is that there is a problem with the cable, and then there is a problem with the power part, and if there is no problem, check the CPU
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It's still not good to repeat the action upstairs, then 90% of your host is that the power supply in the main chassis is burned out, thank you.
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There are three reasons.
Reason 1: The power supply is broken.
Cause 2: The cable is loose.
Reason 3: Motherboard problems.
The solution is as follows:
1. Power detection, unplug the widest cable plugged into the motherboard. (It is a cable output from the power supply) 2. Use a paper clip to short circuit the green and black wires, if the power supply fan is working, then the power supply is good, if it is not working, this is a power supply problem.
3. Open the main chassis, unplug the jumper between the switch and the motherboard, short-circuit it, and observe whether it is started.
4. Replug the power supply into the motherboard, and try to turn it on.
5. If the problem cannot be solved, it is recommended to take the computer to a computer repair shop for maintenance.
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What should I do if the computer does not respond after pressing the power button? What is the problem that the computer cannot be turned on after pressing the power button? Recently, several users have reported that the computer has not been able to turn on normally after pressing the boot button, and the following will give you an analysis of the specific reasons and solutions.
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Share how to disconnect the power supply and determine whether it is a motherboard failure or a power supply problem.
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The boot button on the host computer belongs to the hardware, and it is not controlled by the system before the computer is started, so you can consider the problem of the button itself, such as loose, insensitive or something.
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Didn't react at all? For example, is the light of the power button on? Unplug the power cord of the host and plug it in again, no response means that the circuit is not working, mainly check the part of the power circuit, if the motherboard does not respond, it is a circuit problem!
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It may be that the boot cable is loose or something, you don't press the case button to turn it on, you use iron things on the motherboard side to try whether it can be turned on, if it can't be turned on, then consider whether it is time to change the power supply、、、
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Check the power supply behind the main unit first, and if it's okay, just check if the switch is broken.
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Check that the power cord behind the main unit is in contact with each other. Or change the power cord and the position of the plug again, sometimes the power strip may also have problems... After many times, if the light on the motherboard is still not on, it may be that the power supply is broken, and sometimes the power supply may be wet, and there may be problems after a long time.
When you buy a power supply, you can consider taking the host computer to the computer company to have a look, normally, they should check it for free.
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Ditch it and buy a new one!
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The computer host pressed the start button and did not respond, and the handling method is as follows:
1. First confirm whether there is a problem with the power contact, that is, confirm whether the plugs are plugged in, if they are not plugged in, that is, there is no power, then it will not be able to turn on.
2. Then we unplug the power cord behind the host, press the power button 5-10 times repeatedly, discharge static electricity, and then plug the power cord back in, and then press the power button to see if it returns to normal. In addition, if the yellow light is on, it means that there is power, so please try to switch the power cords between the main unit and the monitor.
3. When we press the power button, we will generally hear a ticking sound, if not, it is likely to be stuck or the lever is broken, and we need to disassemble and replace one.
Reasons why the Apple phone can't turn on:
1. There is no electricity. If you use up all the battery power, the charge needs to be charged to 5% before it can be turned on normally. So in this case, please let the phone charge for a while before trying to turn it on. >>>More
Hello: Which phone are you?
You can try pressing and holding the power button + volume button down + volume button for three seconds at the same time to see if there is any response. Thank you. >>>More
1. The reasons why the laptop does not respond when it is connected to an external speaker are: >>>More
My computer was the same some time ago, the power light flashed when it was turned on, the hard disk light did not order, there was no alarm, the power supply fan and CPU fan were also turning, but the monitor could not be lit. I began to unplug and unplug the memory module, still no, afraid of bad contact, unplug the wires in the host again, still no, I got it for a long time, didn't do it the computer there, after a while, and then clicked on, beep, it turned on smoothly, (it was estimated that it was too hot), and then I restarted the computer, the problem came again, I couldn't turn on the machine several times, and after hanging there for an hour, I turned on it again, and entered the system smoothly. I didn't dare to turn off the phone at will these days.,Once the phone is turned off, I have to wait an hour to turn on normally.,Everything didn't work until yesterday when I changed the memory.。
Generally, it means that the laptop does not respond at all after pressing the power button, that is, the indicator light does not light up after pressing the power button, the fan does not rotate, and the laptop does not respond at all. The most common occurrence in this situation is that the laptop battery is dead, or the external AC power supply is damaged or poorly connected. >>>More