I can t turn on the computer, I just bought it for two days! 30

This is a very common situation in this newly bought machine. It is usually due to the power supply or motherboard.

1。It's the quality of the hardware itself that isn't up to par.

2。Conflicts between hardware.

3。Only in rare cases is the problem of the socket and the main power cord that causes the machine to not be turned on.

The power supply is not plugged in or the power supply is broken, the computer you just bought can't fail all at once, if it's really a computer failure, then I think the company that sells your computer can close its doors, hehe.

The power supply is plugged in Is the socket good If all the sockets are sure to be bad There is no problem It must be a problem with the power supply of the host At this time, where you buy it, find him to be responsible for it, or it is to deceive consumers!

By the way, there is a power switch under the power line behind some cases, see if you have forgotten to open it.

Maybe you can try opening the case and plugging it back in a few places.

If that still doesn't work, I'd suggest you change the power supply.

Generally, this is the case of poor power supply contact or power quality problems.

Hardware problems, do you see if the power supply is not plugged in properly?

The switch does not work, or the power supply voltage is not enough;

In addition to the above, I have also tried that it can't turn on because there is too much thermal paste on the CPU! ～

You can find a seller to solve it.

Generally, it is mostly caused by the memory module for a long time, and the gold finger oxidation at the bottom is caused, remove the memory, wipe the gold finger with an eraser, and then install the machine, the gold finger of the graphics card may also be caused, and the treatment method is the same as above.

First of all, make sure that the display is powered on, and then see if the interface is clean, and the interface of the wire should also be looked at; Finally, let's see if it's a problem with the settings of your monitor, maybe your friend is joking with you and turning the display to pure black.

If your motherboard has an integrated graphics card, there should be a problem with the connector! If you add a graphics card to the board with an integrated graphics card, then you can see it when you receive the integrated graphics card, if not.

You can just take the monitor to the place where the TV is repaired

The wire was broken, and my home computer had a similar situation, so I had to take it to repair.

Stupid, your monitor cable should be connected to a blue connector below, not the top one, you know.

Is the monitor plugged in or the cable is not connected?

1) After pressing the power button, the computer does not respond at all.

Please check the power cord and power socket, if it still doesn't work, please check the host power supply, if you are sure that there is no problem with the host power supply, please check whether there is a problem with the power button, the specific method is to find the power jumper on the motherboard, use a screwdriver to directly short the power jumper, you can find out whether it is a problem with the power button, you can consider replacing the restart button with the power button, this situation is not much, but I have encountered 2 cases. If it doesn't work, it's a problem with the motherboard or the motherboard power wiring.

2) The computer starts up and there is a fan sound, but the screen is not displayed.

Please check the CPU, fan, and CPU power outlets, graphics card, and finally consider the motherboard.

3) The computer starts, the screen is displayed, but you can't enter the Windows system.

Please repair or reinstall the system, if the hard disk cannot be found, please check whether the corresponding interface is prohibited in the CMOS, if there is a problem with the hard disk partition table, please reformat it. If it is a blue screen, please check whether the CMOS hard drive is in the correct format.

4) The computer can enter the system, but it cannot log in.

Please check if there is an error in the boot file, if you have forgotten your password, or if you have opened the numlock key.

5) The computer can log in, but the desktop cannot be seen.

Check whether there are viruses and whether the process is enabled or faulty.

Please describe the situation in detail so that I can give targeted measures, thank you.

The computer repairer has washed you with alcohol?