When a computer fails to operate, we must determine the source of failure in the first place. Especially for larger devices such as motherboards, merely testing external performance doesn’t necessary to determine the failure. In this case we must primarily use substitution to detail examine the problem. In other words, you can replace parts of the computer to test it. For example, it is a good way to install the suspected motherboard into a new computer.
Other way such as clean up method may also help. When you find too much dust on the motherboard, you should clean up your motherboard in the first place. Since motherboard suppliers will never help to prevent your board from dust, it is much easier for dust to adsorbed moisture in the air. To save your motherboard, it is a necessary to use brush. In addition, external boards contained in the main board may be oxidized after a long time; resulting in poor connection with the motherboard. This problem can be solved by using an eraser to wipe the surface of the oxide. Otherwise, you may have to purchase a new one in motherboard shop.