1. Self-check can pass, but it cannot enter the desktop. Is it an operating system or driver problem: (xyz58 19 Idea space-time)
Why can't the computer normally enter the desktop or crash the blue screen after repeated restarts? (xyz58 19 idea space-time)
In the case of virus removal, it is generally due to the installation of GHOST version or other modified versions of the operating system, because a large number of drivers that are not suitable for your hardware devices are integrated in advance, which leads to the system being unable to correctly identify and load the necessary hardware devices of the system. (xyz58 19 idea space-time)
This error can be corrected by downloading and installing the operating system of the original image installation version and installing all drivers certified by Microsoft WHQL. (xyz58 19 idea space-time)
If you don't want to reinstall, you can try to open F8, enter the safe mode to uninstall the incompatible drivers of hardware devices (that is, right-click the device in the device manager) > Properties > Presence > Digital Signature Program >: drivers of Microsoft Windows hardware compatible publishers), start the computer to automatically identify the hardware devices, reinstall the downloaded drivers (WHQL) that have passed the Microsoft digital signature authentication, and then restart the computer again to see if there are any improvements. (xyz58 19 idea space-time)
Then there are conflicts caused by software with duplicate functions in the system (for example, two or more software killers and firewalls are installed, and advertisements are blocked). (xyz58 19 idea space-time)
If it is confirmed that it is not a system or software problem, you need to test the hardware in the following order: first, memory is the most likely, then CPU, then hard disk, and finally graphics card. There will be basically no blue screen on the motherboard. (xyz58 19 idea space-time)
In addition, check whether the machine is overheated due to poor heat dissipation (if it is, it is necessary to install a stronger radiator, repaint thermal silicone grease and replace the high-power fan). (xyz58 19 idea space-time)
Check whether the top of the motherboard capacitor is convex (if convex, it must be replaced immediately). (xyz58 19 idea space-time)
Also check whether the output voltage is unstable due to insufficient power supply of the chassis (if it is, it must be replaced immediately) (xyz58 19 Idea space-time).
If the power-on self-test fails and you can't hear a "click", it must be a hardware failure. You need to make a preliminary judgment with the alarm sound of a small horn (buzzer) to narrow down the scope of hardware failure. Please refer to your motherboard manual for the specific meaning of the power-on alarm sound. (xyz58 19 idea space-time)
2. If the self-check fails, it must be a hardware failure: (xyz58 19 Idea Space-Time)
What should I do if I don't hear the "ticking" sound after starting the computer? (xyz58 19 idea space-time)
After the computer started, the self-test failed. If you don't hear the dripping sound, it must be a hardware failure.
The following aspects should be checked and excluded: (xyz58 19 idea space-time)
1. The system time cannot be dBIOSplayed and saved correctly, which is caused by insufficient battery power on the motherboard. This kind of fault can be solved by replacing the new motherboard battery and pressing DEL key to reset the correct system time.
2. Check whether the motherboard capacitor is bulging or leaking. If so, please go to a professional computer repair place to replace the motherboard capacitor. (xyz58 19 idea space-time)
3. Unplug the memory stick, wipe the golden finger with an eraser and plug it back in.
4. Reconnect all hardware and connecting wires firmly to avoid virtual connection.
5. Open the chassis and start it once to see if the fan is working normally. If it is not normal, please replace it.
6. Check whether the power supply of the chassis is insufficient, and replace it if there is a replacement power supply at hand.
7. Whether there is a hard disk failure will lead to a bad track, check the BIOS to see if you can identify the hard disk. (xyz58 19 idea space-time)
There is no signal on the display, so it is important to check the connection of the display part. The black screen or flower screen of the monitor may be the problem of the graphics card or the monitor itself.
9. According to the alarm sound of the small horn (buzzer) of the boot chassis combined with your specific BIOS preliminary judgment, so as to narrow the scope of the problem. Please refer to your motherboard manual for the specific meaning of alarm sound.
10. That's all I can think of for the time being, and I will check the other parts step by step even if I use substitution method or minimum loading method. (xyz58 19 idea space-time)