Computer switch damage does not start repair properly

Computer presses the switch power on, the screen does not light, a few seconds after the shutdown, and then press the power button without any reaction, the host power cord unplugged, the boot repeats the above phenomenon. Replace the power, CPU, video card, clear CMOS settings, remove the hard disk, optical drive and other peripherals, failure is still, is the motherboard damaged? Not reconciled, suspect the power switch continues to turn on the state causes the fault. Unplug the switch cable, short-circuit switch pin, incredibly normal boot ... Disassemble the Power key part, weld off the micro-switch, connect the line bundle, short-circuit normal boot. 1 Yuan bought 5 micro switch, in exchange for a normal! Almost changed the motherboard, make a joke.

Computer switch damage does not start repair properly