PC basic faults and how to eliminate them

Hardware issues, your graphics card and monitor are not in good contact, unplug the signal cable, and plug it back in.

Oh, hardware problems, the possibility of memory is high, but the contact is not good, just plug and unplug, or the graphics card. If that doesn't work, consider a power supply or a wrench

If the memory doesn't ring, try changing the memory to another slot.

Have you turned on the host, it will be like this if you don't open the host.

Look at the software first, then the hardware.

Look at the outside first, then the inside.

Specific problems, specific analysis.

You have to see the situation.

Is the signal input cable behind the main unit loose?

Check it out and see.

There are symptoms on the Internet, just search for them.

When your computer fails, you may be helpless or "knock and knock" and not be able to troubleshoot. this section.

General first aid principles and detection methods for computer malfunction will be introduced.

Principles of troubleshooting computer troubleshooting.

If the computer fails, you can generally follow the steps below to provide first aid:

1. The principle of software before hardware.

The software-first-hardware principle means that when your computer fails, you should first analyze the problem from the software and operating system.

Troubleshoot the software and then check for hardware failures. Be sure not to blindly disassemble the hardware at the beginning to avoid useless work.

First of all, use the detection software or tool software in your hand, such as Norton, PCTtools, PCCLIN, etc., to detect the operating system and its software, find out the cause of the failure, and then start from the hardware, hands-on maintenance, and eliminate the fault of the hardware, which is computer first aid.

The basic principles of the

2. The principle of external equipment first and then internal equipment of the host.

It is necessary to follow the principle of peripherals first, then host, from large to small, and gradually find out the fault point, and at the same time should be based on the given.

error message for troubleshooting.

Carefully identify the general parts where the fault occurs, such as printers, keyboards, mice, etc., and check the power supply connections and signal cables.

because many failures are caused by these reasons, and then troubleshoot other faults, and finally to the master.

until the cause of the fault is determined to a certain device, and then the fault is handled.

3. The principle of power supply before components.

Whether the power supply is working properly is the key to determining whether the fault is a global failure, so the first thing to check is the power supply part, such as the warranty.

fuses, operating voltages, etc., and then check the individual load parts.

4. The principle of general before special.

When analyzing a fault, first try to consider the general situation that caused the failure, that is, the most likely cause of the failure, such as your scanner is not working properly, first check whether the power cable is loose, or change the data transmission cable.

Maybe the problem will be solved. If not, consider some special causes of failure.

5. The principle of simplicity first and then complexity.

When troubleshooting, we should first eliminate those simple and easy faults, and then eliminate those difficult faults that are difficult to solve.

Because while eliminating simple faults, it may also affect the difficult faults you will solve, and make difficult faults become.

Simple, in addition, if you get inspiration in troubleshooting simple faults, it will be of great help to troubleshoot difficult faults, so that.

It's easier to solve.

The current hardware is of good quality, and if the hardware fails, it is not recommended for non-professionals to repair it!! Most of the general problems are system problems, or problems with the software itself, as long as you replace the system, reinstall the software, and then set it up correctly. There is also a fault caused by the dust accumulation of the gold finger of the memory and graphics card, and it is OK to clean it up.

Then you just need to learn to analyze the problem, and you can generally find the cause on the Internet.

Exclusion method: software first and then hardware, easy and then difficult, software part, virus first software, then system, hardware part from peripherals to the host, the host from whether the connection is normal to hardware damage, hardware damage from the battery, memory, to the graphics card to the CPU, motherboard, etc.

I hope you actually look at it according to your own situation! May you succeed.

Eliminate computer hardware boot order: CPU, RAM, graphics card, hard disk, motherboard.

There are many problems with how the computer always shuts down automatically:

It's useless to press the start button and then press shutdown This is mostly a problem with the program you loaded, and the solution is to start -run-msconfig to close some inexplicable and unfamiliar boot startup programs, and don't let him be in the process. For example, Foxmail Many times, if you don't quit the program, it will not respond to your command when you shut down, and you have to exit the program and turn off the phone.

Is there any way to restore the system so that the vulnerabilities that have been patched after installation do not have to be repaired again?

Answer: You can do a good job of the system, don't install some software, directly patch, and then ghost the system is coarse, it is recommended to use the hard disk version, simple and practical, so do a good job of patching, and then mirror, next time you restore the system, you can directly restore your patched system image.

Let's see if it's a problem with the monitor.

Why does the computer keep black screen.