What is the key sequence for assembling a computer? After assembling the computer, there is no response when pressing the power button?

When assembling a computer, the wiring sequence of the switch keys is particularly important. Improper sequence of power keys when assembling a computer can cause the computer to fail to start properly. In order to solve this problem, PHP editor Xinyi brings you a detailed guide to the wiring sequence of computer switch keys. By reading this guide, you can easily solve the problem of unresponsiveness when pressing the power button when assembling the computer.

What is the key sequence for assembling a computer?

Method: Correct steps to start up

1. Turn on the main power supply first. Just turn on the main power supply to the host and monitor. Usually it is a power strip, turn on the switch of the power strip.

2. Turn on the monitor first. People often make mistakes in this step. When turning on the computer, you should first turn on the monitor. This is good for the monitor.

3. Turn on the host again. After turning on the monitor, you can press the start button of the console. This order cannot be reversed, otherwise it will damage the service life of the machine. Correct steps for shutting down: 1. Close all programs. First, close all open programs. It's best not to leave any behind. This way you won't forget to save the file. Shutdown speed will also be accelerated. 2. Turn off the computer. After closing all programs, press "Start/Shut down computer/Shut down" to shut down the computer. 3. Turn off the monitor. After the computer shows that shutdown is complete and the monitor screen goes black, you can turn off the monitor. Please do not turn off the monitor first so you can't tell whether the computer has completely shut down.

4. Turn off the power. Turn off the main power supply, that is, the power supply on the plug strip. The computer is now shut down. Remember to turn off the main power supply, this is also for the sake of environmental protection.

After assembling the computer, there is no response after pressing the power button?

First of all, we need to confirm what kind of unresponsiveness this is.

1. The power fan does not spin when the computer is turned on.

Solution

Check the power cord Is there any problem? Have you connected the power strip? Is it firmly plugged in?

Check whether the cpu motherboard power supply interface is plugged in correctly! Even though it's facing the wrong way, it won't turn on even though it's plugged in.

Check whether the power supply is normal. Use a wire to plug in the green and black wires of the motherboard's power supply cable. If the fan rotates, it proves it's normal.

2. When the power supply fan is turned on, the screen does not display.

Troubleshooting: When the computer is turned on normally, the screen does not display. Press the key on the 7 keypad a few more times. If the light on the keypad turns off and on, it means the computer is running normally. It's just that the screen doesn't display. Now check to see if the display output line is connected to the graphics card normally! Graphics card graphics card! superior!

The keypad light on the top does not go out when pressed. It is usually because the memory module is not inserted firmly. If it is re-inserted repeatedly, if it still does not work, there is something wrong with the motherboard or CPU.

Assemble the computer. After the assembly is completed, the power button does not respond?

Solution:

1. Plug in the power cord tightly, check the plug on the plug board, and confirm that the plug board is powered on.

2. Confirm that the wire from the host power supply to the plug-in board is good, then take the power supply and connect it to the 24P plug of the motherboard. Short-circuit the green and any black wires. If the power fan turns on, it means there is no problem with the power supply and the power fan does not. It means the power supply is broken, replace it with a new one.

3. After confirming that there is no problem in the above 2 steps, unplug the switch wire connecting the motherboard and the front panel of the chassis, and use a screwdriver to short-circuit the two pins of the switch. If the fan rotates, it means there is no problem with the motherboard. If the fan If it doesn't, it's probably a motherboard problem. Contact a professional maintenance person to handle it.

4. Short-circuit the motherboard pins and the fan will rotate, but there is no response when pressing the switch button on the front panel. This means that the switch button is broken or stuck. Replace with a new switch button, or remove the stuck button.

Assemble the computer keyboard, the light is on but the keys are not responding?

This is a key failure. It is recommended to check every key on the keyboard. The reason may be that one keyboard is pressed and if it does not bounce back, other keys will not respond.

The desktop computer startup switch is not responding?

The solution is as follows:

1. First confirm whether there is a problem with the power contact, that is, confirm whether the plugs are plugged in properly. If they are not plugged in properly, it means there is no power, then that is Can't boot.

2. Then we unplug the power cord from the back of the host, press the power button 5-10 times repeatedly to discharge static electricity, then re-insert the power cord, and then press the power button to see if it returns to normal. . In addition, if the yellow light is on, it means there is power. Please try exchanging the power cords of the host and monitor.

3. When we press the power button, we will usually hear a ticking sound. If not, it is likely that the lever is stuck or broken, and we need to disassemble and replace it.

4. We also need to check whether there is friction on the keycap. If there is friction, we need to add some lubricant. If it is a switch problem, you can interchange the switch and the restart switch, open the computer case, and press the switch according to the switch The leads behind the panel find the switch plug and the reset switch plug. Just interchange the two plugs, but in the future you will have to use the reset switch to turn on the machine.

The computer you assembled yourself doesn’t respond when you press the power button?

There are several possibilities:

1. The power switch jumper of your computer case is connected wrongly. Of course, there will be no response when you press the switch. Please refer to the manual or the front panel jumper diagram on the motherboard for wiring. SWPW etc. represent the jumper at the beginning of the power supply

2. The CPU is not installed properly. Reinstall your CPU.

3. There is a short circuit at the contact point between the motherboard and the chassis.

4. There is something wrong with your power supply or power cord. Or the 4-core or 6-core CPU power supply cable is not plugged in? No response when pressing the computer's power button?

1. First confirm whether there is any problem with the power contact, that is, make sure the plugs are plugged in properly. If they are not plugged in properly, there is no power, and the computer cannot be turned on. 2. Then we unplug the power cord from the back of the host, press the power button 5-10 times repeatedly to discharge static electricity, 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 there is power. Please try exchanging the power cords of the host and monitor. 3. When we press the power button, we will usually hear a ticking sound. If not, it is likely that the lever is stuck or broken, and we need to disassemble and replace it. 4. We also need to check whether there is friction on the keycap. If there is friction, we need to add some lubricant. If it is a switch problem, you can interchange the switch and the reset switch, open the computer case, and find the switch according to the leads behind the switch panel. Plug and reset switch plug, the two plugs can be interchanged, but in the future, you will have to use the reset switch to turn on the computer.

Hair dryer switch assembly?

One leg of the gear switch is connected directly to the heating wire. After switching the gear, the other leg is connected to the heating wire after reducing the voltage through the diode. The selector switch has one leg connected to the fan or connected to the fan after switching gears. , heating wire are connected at the same time.

How to assemble the main switch?

After the user-side wiring is completed, open the main switch, install the incoming line with power, and then send the power on

How to assemble the 304 switch?

The answer is as follows: 1. First, unscrew the panel and base of the 304 switch respectively and place them at the locations where they need to be installed.

2. Then, place the base where it needs to be installed and fix it with screws.

3. Next, insert the wire into the terminal block on the base, paying attention to the correctness of the wiring.

4. Align the panel with the base, and then press the panel until the base and panel fit tightly.

5. Finally, use screws to fix the panel to the base.

Notes:

1. Before installation, make sure the power supply has been cut off to avoid the risk of electric shock.

2. During the installation process, pay attention to the correctness of the wiring and do not reverse the positive and negative poles.

3. After the installation is completed, electrical testing must be performed to ensure the normal use of the switch.

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