The reason analysis of Win7 flagship system computer without power black screen

1, the power cord contact is not good or not to the electricity

It may be that the switch button on the board is not turned on, or the power cord and the chassis power between the plug is not good, it may cause the computer does not power, the computer does not give power, so will lead to no boot.

2, may be the power switch reason

Many compatible machines or brand-name machines, the power button will be damaged and can not use the problem, this problem is more common on the desktop, if not the power button itself is broken is the inside of the connection line or solder point is broken off.

3, the computer's own hardware problems

The biggest reason the computer does not power is the computer's own hardware problems caused by the power, a large probability is the power supply, followed by the motherboard power supply as the most easily consumed one of several bulky, is the most prone to failure, in fact, if your machine is DIY compatible machine, then in the installed place should pay attention to the power problem, Only the power supply stability or excellent quality can guarantee the normal operation of the computer Oh.

Motherboard problems caused the computer does not power up the situation is also possible, in general, the motherboard does not power up, so even if the power is good, the motherboard can not form a normal circuit, therefore, there will be no power.

PS: If there is no power on the notebook or Ultra extreme, in the exclusion of the basic power line and other surface problems, should be timely delivery repair, do not recommend their own hands to dismantle the machine, and DIY compatible with the phenomenon of power, it is recommended to open the chassis to see if the interface is loose, I believe you can quickly troubleshoot the problem.