Q: How to detect hardware failures????

It's called a 2-digit motherboard detection card, and it ranges from 5 to 10 dollars.

Computer companies sell it, and it's very cheap.

But you buy it back, and if there is a manual, you can read it.

If not, you'll have to look it up online.

If it is turned on, it is 00

80% of the motherboard is broken, and the hardware socket is not good.

Peel off one by one and reinsert them.

This is the easiest way to do it

You can test it with a test card, and then look at the ** to find out what it means to be relevant**.

Here's how to detect a computer hardware failure:

1. The computer as a whole is a whole composed of the cooperation of all parts, and the reason will be found faster and clearer by checking from each part;

2. From system to equipment refers to the failure of the computer system, determine which device in the system has a problem, whether it is the host, monitor, keyboard or other equipment;

3. From device to component, after detecting a problem with a component in the device (such as judging that the host is faulty), check which part of the host has the problem, whether it is the CPU, memory module, interface card or other components;

4. From the line of the sock to the point of the device, it refers to the failure of a device that is rotten, and the problem of detecting which pin or lead is to find the fault and the leakage, such as poor contact between the contact and the plug point, the virtual welding of the solder joint and the welding head, and the disconnection or short connection of the wire and lead.

A common inspection method for computer hardware failure

Percussion

If there is a normal and abnormal situation in the process of using the machine, it is often caused by poor plugging, false welding of solder joints and poor contact. At this time, you can use a small rubber hammer to gently tap the suspected faulty parts to observe whether the faulty machine is back to normal, whether the normal machine is wrong, and "hand pressure" is to press the suspicious parts by hand, and then restart the machine to see whether the fault is eliminated.

Measurement method

The measurement method is the most commonly used powerful method to analyze and judge the fault, according to the different characteristic parameters measured, it can be divided into resistance measurement method, current measurement method, waveform measurement method, etc., and the common tool for measurement is a multimeter.

Minimal Systems Approach

Refers to the smallest environment in which the computer can run, that is, the computer is running with the least number of components in the host computer (refers to inserting the CPU, memory, graphics card on the motherboard, connecting the monitor and keyboard, and even the keyboard is not connected), if the computer can boot at the minimum system, the failure should occur on the parts that are not loaded.

Exchange Law

The "swap method" is a method to exchange the same cards (such as PCI cards, memory modules, etc.) with each other, observe the change of faults, and help judge and find the cause of the fault. If you don't have the same inside the computer, you can also find a working computer and swap the parts that you suspect are problematic. If the fault occurs in these areas, the problem can be found very accurately and quickly.

Plugging and unplugging method

A method of pulling out or inserting a board to find the cause of the failure. Pull out the plug-in board one by one, that is, every time you pull out a board, start up to check the status of the machine, once the fault disappears after pulling out the board, it means that the fault is on the board, and this method is also suitable for large-scale integrated circuit chips.

Substitution method

A method of replacing a board or component with a good board or a good component, which is simple, convenient and reliable, and is especially suitable for large-scale integrated circuits.

Procedural diagnostics

Generally, computer systems are equipped with POST programs, advanced diagnostic programs, and special diagnostic programs. This kind of program generally has 8 functional test modules, which can detect CPU, memory, display, soft hard disk, keyboard, printer interface, etc., by displaying error information, providing error ** and emitting different sounds, providing users with fault causes and fault locations, and using this kind of program to easily detect the fault location.

Virus exclusion method

Viruses are well-known for their damage to computers, ranging from slowing down machines to damaging files or crashing. In order to facilitate computer troubleshooting, it is necessary to prepare virus-free boot disk, anti-virus software and disk repair software to deal with system infection or hard disk failure to boot.

Check whether there is a problem with the computer hardware, it is also necessary to test it by replacing the accessories, and there is a problem with not dismantling the tung after the replacement, and there is a problem with the original one, that is, there is a problem with the socks and the hardware.

You can enter the hand stupid first end i butler - utilities - mobile phone detection or enter"vivo official website""vivo**" app--my--mobile phone detection, to detect mobile phones;

In general, the normal use of the pulse rate of the device means that there is no problem with the hardware of the device. If you are not at ease, you can go to the vivo customer service center, we have professional technicians to serve you.

Go and select your current city to get it.

Enter BISO, which has hardware information inside.

360's hardware guru can check it.

If you look at the information, Master Lu, if you check the problem, you will check the card.

How to detect your own computer hardware information.