Board level maintenance
Board-level maintenance, the maintenance object is a device or a component in the computer, such as motherboard, power supply, monitor, etc. , including computer software settings. At this level, the maintenance method is mainly to locate and eliminate the faulty components or equipment through simple operations (such as replacement and debugging).
For example, there is a computer that does not display anything when it is turned on. As a first-level maintenance, it is necessary to determine whether this phenomenon is caused by the monitor, or the graphics card or even the motherboard. As long as the faulty component is identified and replaced, the maintenance task is completed.
It usually takes several weeks to learn board-level maintenance. Board-level maintenance is the lowest-level specialty in the whole computer industry. Chip level maintenance
Chip level maintenance is the maintenance of components. It is through some necessary means (such as testing instruments) to locate the faulty components and devices in parts or equipment, so as to achieve the purpose of troubleshooting.
For example, in the last example, if it is chip-level maintenance, it is necessary to judge not only which component it is, but also which device or component on the component is faulty, and repair the faulty component, thus completing the maintenance task.
Chip-level maintenance takes a month or two to learn. Chip-level maintenance has been the highest level of personal computer maintenance technology, whether it is desktop maintenance or notebook maintenance. In terms of technical content, it is actually not much higher than the technical level of various household appliances such as televisions, air conditioners and refrigerators.