Urgent!! There s a problem with the host.,Can t turn it on.,I hope the master helps, thank you.

It should be that the motherboard power supply is unstable, you open the case, put the motherboard, cpu fan, and replug it again, try.

If it can't be solved, there may be a problem with the motherboard.

First: Check if your computer's screen shows up when the fan turns a few times? If so, check if the hard drive is plugged in?

Second: Check if the memory is plugged in? It is recommended to experiment with the substitution method.

Third: Check whether your motherboard's power supply is plugged in steadily?

Did you hear the alarm sound of the motherboard BIOS.

1 short, if any. The host boots normally.

2 short. General errors.

1 long and 1 short. Memory or motherboard errors.

1 long and 2 short. There was an error on the graphics card or display device.

1 long and 3 short. Keyboard error.

1 long and 9 short. BIOS corruption.

Repeat short rings. Power issues.

No sound, no display. Power issues or damaged BIOS.

The long sound kept ringing. Memory error.

I think yours is broken with the motherboard.

The power supply is unlikely, and it is possible that there is a short circuit on the motherboard.

Let's start with the power supply! There is no more power supply to change one on and start down. Yesterday my power supply broke.

Secondly, if the power supply problem is ruled out, then consider the motherboard!

Presumably a hardware issue.

Check whether the power supply of the motherboard is connected to the motherboard.

If not, you can only send it to the repair station.

Overload shock protection.

Solution: BIOS discharge (unplug the host power cord when discharging) Discharge method: 1. Find the BIOS jumper on the motherboard, connect the jumper to the discharge foot for 1 minute, and then restore the jumper.

2. Remove the button battery on the motherboard, use tweezers to short the positive and negative poles on the battery holder for 1 minute, and then replace the battery.

Try reseat the memory.

In this case, it is directly related to the hardware, and it is recommended that you perform the following operations:

1. Remove the battery on the back of the notebook, connect the computer with only the power adapter, and try to turn on the computer, if the boot is normal, then it is caused by poor battery contact or battery failure.

2. Only use the battery, do not connect the power adapter, if the boot is normal, then it should be caused by a problem with the power adapter or a short circuit in the power interface of the notebook.

3. Unplug the power cord, remove the battery, and press and hold the power button for 30 seconds without letting go. Try to boot up, if the boot is normal, then it is only caused by the abnormal BIOS of the motherboard.

4. Unplug the power cord, remove the battery, open the back cover of the memory, plug in and unplug the memory, wipe the gold finger part with an eraser, and plug it back in (don't reverse it).

5. If the above operations cannot solve the problem, it is recommended that the notebook be sent to the maintenance center for testing.