After reading, you are the first computer maintenance engineer

Chapter I basic principles and methods of computer maintenance

The principles and methods described here are the basis of the second part of the classification judgment, which needs to be conscientiously complied with.

§1.1 the basic principles of computer maintenance should be followed:

First, the maintenance judgment must start from the simplest thing

Simple things, on the one hand, refers to observation, on the other hand refers to the simple environment.

The simple thing is observation, which includes:

1, the environment surrounding the computer-location, power supply, connection, other equipment, temperature and humidity;

2, the phenomenon displayed by computer, the content of display, and their similarities and differences with normal situation;

3. The environment of the computer--dust, connection, color of the device, the shape of the parts, the status of the light;

4, the computer hardware and software configuration-what kind of hardware installed, the use of resources, the use of the operating system, which installed the application software, hardware settings driver version, and so on.

The simple environment includes:

1. The smallest system to be mentioned in the future;

2, in the judgment of the environment, including only basic operating parts/software, and suspected faulty parts/software;

3, in a clean system, add the user's application (hardware, software) to analyze and judge

Starting from simple things, is conducive to focus on energy, and is conducive to fault diagnosis and positioning. It must be noted that after careful observation, it is necessary to judge and repair.

Second, according to the observed phenomenon, to "first think and then do"

First think and then do, including the following aspects:

First of all, think about how to do, where to start, and then the actual hands. It can be said that the first analysis of the judgement, and then maintenance.

Secondly, for the observed phenomenon, as far as possible to consult the relevant information, see if there is no corresponding technical requirements, the use of characteristics, and then according to the information, combined with the following to discuss the content, and then proceed with maintenance.

Finally, in the process of analysis and judgment, according to their own knowledge, experience to make judgments, for their own do not know or do not understand, we must first to have experienced colleagues or your technical support engineers to consult and seek help.

Third, in the majority of computer maintenance judgments, must be "first soft and hard:

That is, judging from the whole process of maintenance, always first judge whether the software failure, first check the software problem, when the software environment is normal, if the fault can not disappear, and then proceed to check from the hardware.

Four, in the maintenance process should distinguish between primary and secondary, namely "catch principal contradiction"

When you reproduce the symptom, you may sometimes see that there is more than one symptom of a failed machine, but there are two or more than two fault phenomena (such as: the start-up process is not obvious, but the machine is also started, at the same time after the startup, there is a crash phenomenon, etc.), the last, should first judge, repair the main fault phenomenon, when repaired, Re-repair minor fault phenomenon, sometimes the secondary fault phenomenon is no longer required maintenance.