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My old phone is in the same situation as yours, now it's okay, it's a problem with the boot button.
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The possibility of the power supply burning out is not hit, if it is a power supply problem, it is only possible that the power supply is insufficient and the boot button is even more impossible.
According to the analysis of the situation you described, you should focus on the motherboard and memory problems, but first try to take a memory with no problem and plug it into the motherboard to boot it up, if the situation is still the same, it is a motherboard problem, and you should get it to the place of purchase in time for maintenance. It's not that it's good if you see with the naked eye that there is no problem with the capacitor, it is likely that there is a leakage of the motherboard.
Note that it is also necessary to rule out excessive dust, so please clean up the dust yourself and check it again.
Again, there is no problem with the button, it's the motherboard problem, if the landlord thinks it's your button, I really can't help it.
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Re-insert all the cards that can be re-inserted.
Personally, I feel that it may be a problem with the voltage. You can cross-test it, if this condition is again.
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The display doesn't respond at all, and it's usually the following problem. It is better to use the substitution method.
1. Clean up the memory dust and reinsert it.
2. Clean the graphics card dust and reinsert it.
3. Clean up the dust of the motherboard, because the motherboard sometimes short-circuits will also do this.
4. Check the CPU to see if the fan is spinning.
5. The power of the power supply is not enough.
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This situation is that the CPU temperature is too high, causing the motherboard to lose power protection, check if there is any problem with your CPU fan, or test it again!
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Power failure I've been like this before, the voltage is unstable, and the power supply is changed.
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Unplug the PCI slot on the motherboard, hard disks, optical drives, and other devices.
Whether to reboot the computer at startup.
Rebooting if there is no alarm may be a CPU issue.
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I think it's the graphics card, or the motherboard AGP PCI-E slot is wrong, you'd better change the graphics card to see.
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Cup overload protection, see if your CPU fan is still spinning? If the power comes on, there's no problem. If it burns, it won't turn it on. You see, your power fan should be turning.
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You can check the wiring problem first.
Re-detect the power supply.
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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.
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Move to the first row and press enter.
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The system is broken, reinstall the system.
It should be that your hard disk wiring is not too stable, but it does not rule out your system problems, I have also encountered the problem of blue screen, and finally reinstalled the system, and then it's OK, I believe that the problem with your machine is not too big, you can reinstall it and try it. Or just connect the wires.
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