Sometimes it's good, sometimes it's hundreds of times. Sometimes, press a few, and now press 6, 7 minutes to open. What's the matter? Copy it, thanks,
The switch is broken. Go to Lianhua in the century and buy one for change!
If you can boot using a screwdriver, then you can see out is not the chassis switch button is broken, the method is by using a screwdriver on the motherboard PW two pins short answer to boot, if normal boot is bad key
On the whole, there are many hardware and software failures that will cause the computer to fail to boot. We can judge the cause of the fault from the time the computer is turned on. If you press the computer's start button, the computer does not respond, and even the power indicator is not lit, that is, power or motherboard failure. If the computer when the power on, the power indicator is normal, the fan also work, but displays no signal, said CPU, motherboard, memory, video card, display one or more than one fails, it may be loose.
If the computer is turned on, the screen is displayed, but the self-test will pass, but it means that memory, the motherboard or the hard disk have problems. If the computer boot, check through, but WINDOWS can not start, it means that the hard disk or WINDOWS system problems. If the computer boot, WINDOWS can start, but can not see the desktop or in the boot process, the blue screen, indicating that the system has problems.