Today, after shutdown, and then boot the computer did not respond, and the power supply and CPU fan did not respond, I tested on another computer, the power is no problem, it can not be the motherboard is broken?
If the above several have tried or not, is mostly bad motherboard repair.Suggest that you test, will drive, hard disk, even the main board of the line are removed, the keyboard, mouse, cable, and so on are also removed.No more questions.
If the power is switched off and the fan cannot be switched on (power, fan), the following sequence can be checked one by one:1. power cord (you can try it on other computers);2 boot keys, this is a bit difficult, you can try the power button on the motherboard even pulled down, and then grab a metal, will connect the two needle boot keys together, touch it, if the fan can turn the power button is bad;3., there is a button on the motherboard battery, unplug the power line, remove the battery, reverse loading, about 10 seconds after the removal, and then forward loading, and then power on, try.
Power plug in the motherboard has two sets of lines, of which a group of four pin, you try to unplug the four pin, the other does not move, then power, boot try. If this is the boot after the fan can turn, the motherboard is the CPU supply is broken, repair.
There's no response at all, right? For example, is the monitor on? And is there any unusual sound in the case?
