Computer now has become a daily necessities of life, then how much do you know about computers? The following small series for you to organize some common computer hardware knowledge, quickly to learn!
Computer hardware, including all the physical parts of a computer, to differentiate between the data it contains or executes and the software that provides instructions for the hardware to complete the task. Computer hardware mainly includes: chassis, motherboard, bus, power, hard disk, storage controller, interface card, portable storage device, built-in memory, input equipment, output equipment, CPU fan, buzzer and so on.
Motherboard failure is often manifested as system startup failure, screen display, sometimes can start and sometimes can't start and so difficult to visually judge the fault phenomenon. In the failure of the motherboard for inspection and maintenance, the general use of "one look, two listen, three smell, four touch" maintenance principles. is to observe the phenomenon of failure, listen to the alarm sound, smell whether there is a smell, with the hand to touch some parts are hot and so on. The following list of several common motherboard maintenance methods, each has its own advantages and limitations, the general need to use a combination of several methods.
This method is generally used to solve the motherboard on the dust too much, dust with static caused the motherboard can not work correctly, the use of brush to clear the dust on the motherboard. In addition, the motherboard is generally connected with a lot of external board cards, these cards of the gold fingers may be oxidized, resulting in contact with the motherboard is not good, this problem can be wiped off the surface of the oxide layer.
The main use of "look, touch" skills. In the case of power off, to see whether the components are plugged in correctly, capacitance, resistance pins are in good contact with the surface of each component is burnt, cracking phenomenon, each circuit board of copper foil is burned traces. At the same time, you can use your hands to touch some of the surface of the chip to see if there is a very hot phenomenon.
When it is not possible to determine which part is causing the failure, the suspect parts can be eliminated by substitution. You can take the suspected parts to a good computer to try, but also can put the good parts to the faulty computer to try. Such as: There is a self-test times wrong or capacity is not correct, you can use this method to determine the real culprit causing the failure.
Using the motherboard BIOS self-test system, use the test board to troubleshoot the motherboard.