Maintenance Method Of Motherboard (2)

Maintenance method of motherboard (2)

Substitution method

When it is not clear which component is caused by some failure phenomenon, the suspected component can be replaced to eliminate the failure. You can take the suspected components to a good computer to try, and you can also connect the good components to a malfunctioning computer to try. For example, if an error is reported during self-checking or the capacity is incorrect, this method can be used to determine the real culprit of the fault.

Detection method

Use the motherboard bios self-check system, and use the test card to troubleshoot the motherboard.

Heating and cooling method

Heating and cooling methods are also highly targeted, mainly for motherboard failures caused by poor thermal stability of a component in the motherboard. If the motherboard maintenance personnel suspect that the cause of the temperature increase of a certain component is suspicious, you can use the touch method at this time. When the temperature change can be clearly felt by hand, you can use the cooling method to forcibly cool the related components. After cooling down the corresponding parts, turn on the computer. If the degree of the computer failure decreases or even disappears, it can be judged that the motherboard failure is caused by the component, and the maintenance personnel only need to replace it. Generally speaking, heating and cooling require the motherboard repair personnel to have a wealth of work experience, as the basis for troubleshooting, and to ensure the quality and efficiency of maintenance.

Squeeze

When repairing computer motherboards, the extrusion method is also one of the important repair methods, but it has a strong pertinence. It is usually used to check whether the solder ball array package and the major chips have empty soldering problems. If the computer cannot be turned on due to a malfunction, the motherboard maintenance personnel can use the extrusion method to squeeze the south bridge with appropriate strength. At the same time, the motherboard must be powered on. If the computer cannot be turned on at this time, it means that the motherboard's failure is not caused by the South Bridge; if the computer can be turned on and works normally after connecting to the power supply, it means that there is a problem with the South Bridge. Namely, the South Bridge is empty welding. At this time, just disassemble the computer and re-weld the South Bridge in the motherboard to complete the maintenance of the motherboard failure. All in all, the use of the extrusion method is highly targeted, so it cannot be widely used in the maintenance of computer motherboard failures, but the extrusion method can still play its important role when necessary.

Motherboard diagnostic card and replacement method

Motherboard diagnosis mainly uses the basic input and output system in the motherboard to automatically complete the self-checking procedure of the computer motherboard failure, and it can also display the results of the automatic failure detection in the form of codes. Motherboard fault maintenance personnel use the motherboard diagnostic card for fault detection, which can effectively simplify the maintenance steps and save a lot of maintenance time. However, because the faults are presented in the form of codes, the maintenance personnel need to have high professional quality and accurately judge the motherboard. The cause and location of the failure. The replacement method is relatively simple, but it may take a long time to determine the fault, that is, use normal components to replace the components in the computer motherboard. If the computer motherboard can operate normally after replacing a component, it means that the motherboard is malfunctioning. At this location, targeted maintenance can be carried out. But in fact, the replacement method needs to be established on the basis of the motherboard diagnostic card, and the technical content of the replacement method is reduced, and it is more dependent on the experience of the motherboard maintenance personnel. Therefore, many times professional maintenance personnel will not use this method, but combine it with the motherboard diagnostic card to quickly and accurately determine the failure of the computer motherboard