My monitor, replaced with the main unit that my brother just brought higher than my original config

The graphics card may be loose during the move, so plug it in again.

There are two reasons for this:

1) The first reason: it is possible that the connection between the desktop host and the monitor is not in good contact (especially the interface is not plugged in or loose), and there may be a problem with the data cable of this connection, so there will be no signal input to the screen, no display, black screen, solution: just re-plug the connected data cable, or replace the data cable.

2) The second reason: due to the formation of an oxide layer on the surface of the gold finger of the memory or independent graphics card, resulting in poor contact between the memory and the memory slot, the poor contact between the graphics card and the graphics card slot, resulting in a black screen and no signal output

Solution: You can turn off the power first, open the compartment, dial out the memory, use the eraser against the part of the gold finger (that is, the place where there is a copper sheet,) wipe a few copper pieces back and forth,) wipe back and forth a few times, and then insert back into the memory slot (or insert a memory slot back), it's OK, if there is a separate graphics card, you can use the same method to deal with the graphics card, and then insert it back into the graphics card slot, and finally install the machine, restart the computer and it's OK.

Possible causes of this situation and how to eliminate it:

1. The signal line is loose and the signal cannot be transmitted - re-plug and unplug to try.

2. The host does not send the display signal normally - you can connect it to other hosts or laptops to eliminate the problem of the monitor.

3. The host sets the resolution beyond the range that the monitor can display - enter the safe mode and adjust the display resolution.

4. The display selection signal does not match, for example, the VGA interface is accessed, and the display selection input is DVI input - the input option of the access signal interface matching is selected in the display menu.

Is the plug connecting the computer to the host computer loose?

Summary. (1) The first reason: it is possible that the connection between the desktop host and the monitor is not in good contact (especially the interface is not plugged in or loose), and there may be a problem with the data cable of this connection, so there will be no signal input to the screen, no display, black screen, treatment method:

Just plug the connected cable back in or replace it. 2) The second reason: due to the formation of an oxide layer on the surface of the gold finger of the memory or independent graphics card, resulting in poor contact between the memory and the memory slot, the poor contact between the graphics card and the graphics card slot, resulting in a black screen and no signal output

Solution: You can turn off the power first, open the compartment, dial out the memory, use the eraser against the part of the gold finger (that is, the place where there is a copper sheet,) wipe a few copper pieces back and forth,) wipe back and forth a few times, and then insert back into the memory slot (or insert a memory slot back), it's OK, if there is a separate graphics card, you can use the same method to deal with the graphics card, and then insert it back into the graphics card slot, and finally install the machine, restart the computer and it's OK.

No signal from the new host display?

1) The first reason: it is possible that the connection between the desktop host and the monitor is not in good contact (especially the interface is not plugged in or loose), and there may be a problem with the data cable of this connection, so there will be no signal input to the screen, no display, black screen, solution: just re-plug the connected data cable, or replace the data cable.

2) The second reason: due to the formation of an oxide layer on the surface of the gold finger of the memory or independent graphics card, resulting in poor contact between the memory and the memory slot, and the poor contact between the graphics card and the graphics card slot, resulting in a black screen and no signal output: Solution:

You can turn off the power first, open the compartment, dial out the memory, use the eraser to the part of the gold finger (that is, where there is a copper sheet,) wipe a few copper pieces back and forth,) wipe back and forth a few times, and then insert back into the memory slot (or insert a memory slot back), it's OK, if there is a separate graphics card, you can use the same method to deal with the graphics card, and then insert it back into the graphics card slot, and finally install it, restart the computer and it's OK.

I told you it was a new host.

The signal line is loose, and the signal cannot be transmitted - re-plug and unplug the test 2, the host does not send the display signal normally - you can connect it to other hosts or laptops, Eliminate the problem of the display 3, the host sets the resolution beyond the range that the monitor can display - enter the safe mode, adjust the display resolution 4, the display selection signal does not match, for example, the access is VGA interface, the display selection input is DVI input - select the input option of the access signal interface matching in the display menu.

If your new host monitor has no signal, it is caused by the following reasons:1The monitor is not powered on:

Make sure your monitor is turned on and the power cord is plugged in. 2.The monitor signal cable is not plugged in:

Please check whether your monitor signal cable is plugged in, and the signal cable should be plugged into the corresponding interface between the spike monitor and the host. 3.Loose monitor signal cable:

If your monitor has a signal cable plugged in, but there is still no signal, check whether the signal cable is loose or damaged. 4.Monitor setup error:

Please check whether your monitor settings are correct, such as whether the input source is selected correctly, whether the resolution is correct, etc. 5.Graphics card failure:

If all of the above are ruled out, then it is possible that your graphics card is faulty and needs to be replaced or repaired.

Possible causes of this situation and how to eliminate it:

1. The signal line is loose and the signal cannot be transmitted - re-plug and unplug to try.

2. The host does not send the display signal normally - you can connect it to other hosts or laptops to eliminate the problem of the monitor.

3. The host sets the resolution beyond the range that the monitor can display - enter the safe mode and adjust the display resolution.

4. The display selection signal does not match, for example, the VGA interface is accessed, and the display selection input is DVI input - the input option of the access signal interface matching is selected in the display menu.

There are two reasons for this:

1) The first reason: it is possible that the connection between the desktop host and the monitor is not in good contact (especially the interface is not plugged in or loose), and there may be a problem with the data cable of this connection, so there will be no signal input to the screen, no display, black screen, solution: just re-plug the connected data cable, or replace the data cable.

2) The second reason: due to the formation of an oxide layer on the surface of the gold finger of the memory or independent graphics card, resulting in poor contact between the memory and the memory slot, the poor contact between the graphics card and the graphics card slot, resulting in a black screen and no signal output

Solution: You can turn off the power first, open the compartment, dial out the memory, use the eraser against the part of the gold finger (that is, the place where there is a copper sheet,) wipe a few copper pieces back and forth,) wipe back and forth a few times, and then insert back into the memory slot (or insert a memory slot back), it's OK, if there is a separate graphics card, you can use the same method to deal with the graphics card, and then insert it back into the graphics card slot, and finally install the machine, restart the computer and it's OK.

Hello. First, make sure that the resolution of your computer is not set too high, beyond the resolution of your monitor.

Ruling out this reason, look further down.

Can I enter the windows screen? If you can enter, it means that the monitor is good, try to enter the safe mode to see if the performance is not good. Check the graphics card driver in safe mode.

If you confirm that the new CPU itself is fine, and do not move other components when replacing the CPU, such as memory and graphics card, the most likely CPU is not installed properly, it is recommended to reinstall the CPU.

You also need to check if the motherboard supports the new CPU.

Hello, this may be because you accidentally knocked the host in the process of transporting the computer host, so that your computer motherboard and graphics card loose, you just need to disassemble the computer outside the case, press the graphics card with your hand to make the motherboard and graphics card fastened, I hope mine can solve your problem. Give a full review!

The cable is plugged in wrong, and there should be two blanks in the graphics card, which should be plugged into the discrete graphics card. It's the same with my computer, trust me!

Take a closer look at whether the signal cable of your monitor is plugged in**Is it on the motherboard? That's wrong, if you have a discrete graphics card, you have to plug it into the discrete graphics card, and the position should be horizontal at the bottom, as for VGA, or DVI, or HDMI, I don't know, anyway, the interface type is obvious, and you can see it at a glance.