When assembling a computer, the first step is to select the motherboard, CPU, and memory. harddisk. graphics card. chassis and power supply.
The second keyboard, mouse, monitor, camera and other peripherals.
The third part is assembled. Insert the cpu, hard drive, and graphics card. Power supply, etc. are connected as required. The keyboard, mouse, and monitor peripherals are connected to the corresponding interfaces.
The fourth step is to choose a windows system or a linux system when making a system disk. The fifth step is to install the system.
The sixth part starts.
In this case, there must be a problem with the motherboard or memory. It is recommended to ask someone to borrow a memory and try to boot it normally. If it still doesn't work properly, you can go directly to the merchant to replace the motherboard.
If there is no chassis: Find the double row of bare pins from the motherboard (usually including PWR_LED, RST, HDD_LED, PWR, etc., meaning: power indicator light, restart, hard disk indicator light, power supply) . Just short-circuit the two pins of the power supply (connect them with a conductor). If you are using a tractor card: you still need to turn on the host power supply
Assemble a desktop computer and reinstall the system:
1. Make a USB flash drive, then go to the relevant website to download the win system and save it to the USB boot disk, restart the computer and wait for the boot screen to appear and press Start Shortcut key, select u disk boot to enter the u boot main menu, select the "u boot WIN8PE standard version (new machine)" option, press the Enter key to confirm
2. Select the win image in the pe installation tool Place it in the c drive and click OK
3. At this time, click the "OK" button directly in the pop-up prompt window
4. Then the installation tool starts to work, we need to wait patiently for a few minutes
5. After completion, a pop-up prompt box will prompt whether to restart immediately. At this time, we can just click Restart Now.
6. At this time, you can remove the USB disk and restart the system to start the installation. We do not need to perform any operations, just wait for the installation to complete.
After the computer is assembled, make sure that all the internal power cords are connected in place. After confirmation, connect the power supply and start the computer directly.
There is no need for you to do anything. Once the computer starts up normally, it means that the computer has been successfully assembled.
Then enter the system and see if it can operate normally. It is best if it can continue to run for a period of time. If it does not malfunction, it means that your computer is installed well.
The steps for booting the computer into the system for the first time after it is assembled are as follows.
1. Directly select the startup item. After booting, immediately press F12, or use the Fn and F12 keys to enter the quick startup options interface.
2. Enter the startup item selection interface. There are startup items for hard disk, CD, and U disk. Select the name of the device and press Enter. You can use the device to start the computer. To learn the name of the startup device, you can go to You will know in the device manager.
3. Check the motherboard manual. After purchasing a computer or motherboard, there will be a manual that will introduce how to enter the system.
Step 1: Preparation
Before installing the computer power-on key, you need to prepare the following tools and materials:
1. Computer power-on key
2. Screwdriver
3. Wire pliers
4. Wire sleeve
5. Wire
Step 2: Open the computer case
First, you need to open the computer case. Use a screwdriver to remove the screws from the case and open the sides of the case.
Step 3: Find the power button socket
After opening the case, you need to find the power button socket. It's usually located on the motherboard, and you can check the motherboard's manual to determine its location.
Step 4: Connect the wire
Insert the wire into the power button socket. Then, use wire cutters to secure the wire to the outlet. To protect your wires, you can put wire sleeves on them.
Step 5: Install the power button
Now, you can install the power button on the chassis. Place the power button in a suitable position on the chassis, and then use a screwdriver to secure it to the chassis.
Step 6: Test the power button
After the installation is complete, you need to test whether the power button is working properly. Press the power button and see if the computer starts normally. If the computer won't start, you need to check that the connections are correct.
Step 7: Close the chassis
After the test is completed, you need to close the chassis. Use a screwdriver to tighten the screws on the case and make sure the case is securely closed.
If it cannot be turned on, check to see if the power light on the front of the computer is on. Is the power plugged in properly? Is the monitor turned on?
Is the fan of the computer host spinning?
Is there any sound from the hard drive?
If there is no sound at all, unplug the power cord and try another socket. If it still doesn't work, it's probably a power issue.
1. First check whether the power supply is normal.
2. If there is no response when pressing the power button, it may be that the built-in power supply of the cash register is broken or the external adapter is broken.
3. Press the power button, you can hear the fan sound, and then it goes off again. The motherboard or power supply may be faulty.
4. If the computer can be powered on, but a blue screen appears after booting, it may be that the computer has too much dust or the memory is bad. Try to unplug the memory and wipe the gold finger with an eraser to clear the dust.
5. The computer can be turned on, but the screen goes black after turning on the computer. The hard drive may be damaged, the hard drive is not recognized, or the system is damaged.
Check whether there is enough power to turn on. Insufficient power is the most common and easiest problem to solve. Some friends’ iPads cannot be turned on immediately even if they are plugged into the charger. This situation of not turning on is usually If you leave your iPad on at night and forget to turn it off or if you don't use it for a long time, it can be used normally when the battery is charged to 5%.
2. The iPad tablet computer system is damaged. If the iPad is damaged, it will crash when the Apple logo appears when it is turned on. If it always freezes with a black screen halfway through starting up, this is usually the case. The system is damaged. At this time, we only need to replace the system to solve the problem.
3. Press and hold the power button on the top of the iPad. Generally speaking, the power button must be pressed and held to turn on the device. If the power button is pressed for too short a time, it may not be turned on.
4. Charge for more than 20 minutes. Try pressing and holding the home button and power button for about fifteen seconds to see if it can be forced to start. If the restart is successful and the normal Apple logo is displayed, the iPad can be used normally after restarting.
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