Many people are troubled by the problem that the indicator light does not light up when assembling a computer. PHP editor Apple has brought you an in-depth guide that will explore in detail the different reasons why the indicator light does not light up. We will guide you step by step to check and troubleshoot possible faults to help you solve the problem quickly and get your computer to start smoothly.
The indicator light does not light up. Is the power indicator light wire connected backwards or the machine does not start at all?
The hard disk light is not on, indicating that the hard disk is not working, that is, the computer is not reading the hard disk data. If there is no display, it means that the monitor has not received the display signal from the host. Restart the computer and see if there is a normal startup sound. If so, it means the motherboard, CPU, and memory are normal. Then check whether the hard drive power cord is plugged in properly. Check whether the display data cable is plugged in properly. If you don't hear a "beep" sound, there is a high probability that there is something wrong with the motherboard. Let's have it checked by a professional.
If we talk about the life span after use, this is not necessarily true. It may break in one year, or it may not break in ten years. But if we talk about performance life, the longest is estimated to be 5 years. After 5 years, even the current mid-to-high-end configurations may even have web pages and QQ stuck by then
In fact, many computers are being operated The system was eliminated. The new operating system has high hardware requirements, and old computers are too slow to run the new operating system. Just be eliminated. This is the trend and law, and it is also the need of software and hardware manufacturers and dealers.
Looking at the motherboard model, it should be UEFI bios. First find a keyboard with PS2 port, enter the bios, turn off UEFI startup, and change it to Legacy mode. If there is fast startup, turn off options like Fast Boot. UEFI Start up, turn on fast startup, USB interface detection may be turned off before entering the system, and USB devices can be used only after entering the system
If this happens to your computer, you can try the following methods to solve it:
1. Check whether the power and restart buttons are physically faulty. The most common one is that you cannot get up when pressed. If this problem occurs with any of the buttons, the computer may not boot normally. The only solution is to send it for repair or replace the chassis, because the chassis is integrated inside the chassis and is difficult for ordinary users to repair.
2. Open the case, unplug the motherboard BIOS power supply, wait for a while, and then press it again to see if the computer can run normally.
3. Unplug all the connecting cables between the motherboard and the chassis, and use a screwdriver to touch the motherboard power control pins (since there are many pins, please refer to the motherboard manual to confirm the power control pins. Do not touch it randomly, as it will burn the motherboard. ), if it boots normally, it proves to be a problem with the chassis boot and restart keys. The solution is the same as above.
It may be a power problem! It's very simple. Unplug everything plugged into the motherboard from the power supply first, then use a paper clip on the 20+4 pin end to connect the green wire to any black wire. If the power supply fan is spinning Then the power supply is good and can be ruled out.
After confirming that the power supply is good, connect the motherboard power supply and CPU power supply. If the independent graphics needs power supply, also connect it. However, if there is integrated graphics or nuclear graphics, it is recommended to unplug the independent graphics first (click When it lights up, it shows independently on top). Then unplug the hard drive indicator light, power indicator light, and restart button (leave only the power-on cable), and then turn on the computer. If it cannot be turned on, it means that the connection between the indicator lights, the reset button, and the power-on button is wrong. !
1. Power, first look at the power of your power supply hardware, and look at the rated power of your graphics card and CPU.
The simplest algorithm is to add the graphics card and CPU, plus 200W. If the power is not enough, no matter how good the brand is, it will pale in comparison.
Excessive performance will feel like a waste.
2. Check the size of the chassis to see if it can fit. If it can’t fit, replace the power supply and chassis, which is a bit troublesome!
3. For wires, you can choose full modules, straight-out cables, or semi-modules. Full-module assembly is simpler.
4. Power supply efficiency and quality. Nowadays, power supplies have various solutions, such as DC-DC, EMI filters, capacitors, etc.
Solid capacitors in power supplies are better, and single-channel 12V current is better. A friend who doesn't install the computer often can't understand many parameters. Simply buy a good power supply with confidence. Look at the brand. Taiwanese and American Corsair products are not very cost-effective. In fact, they are a bit exaggerated. Domestic power supplies include Great Wall, Huntkey, Cooler, etc. to choose from.
My friends around me use Great Wall power supplies the most. Domestic power supplies from Great Wall are used in civilian, military, aerospace, supercomputers, servers, etc., which shows that they are of excellent quality. A 400W bronze power supply for home and office use is enough. Games, etc. require more than 500W, and both bronze and gold medals are acceptable. The efficiency and quality of gold medals will be better than bronze medals.
The power supply for assembling the computer should be a national standard brand product with a power that is at least 1/3 greater. If the power consumption of the host is 350 watts, then a nominal power supply of 450 watts or more should be used
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 securely. Re-insert it repeatedly. If it still doesn't work, there is something wrong with the motherboard or CPU.
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 work. 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 turn on, it's probably a motherboard problem, so contact professional maintenance personnel 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.
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