How to test the power of a host with black and green lines

Host power supply problems after how to overhaul it?

The simplest test host power is good or bad operation is a short connection to the motherboard power supply to the main board of the interface of the Green Line and any one black lines, see whether the power supply fan rotation. Black-Green Line short connection, power output voltage levels of the voltage. is used to detect the power of good or bad method.

In the normal state of the power supply, when the power supply is maintained, the power supply to the motherboard to power the interface of a green and any of the black line connected to the power supply fan can rotate, if the rotation instructions to work properly, if not turn, it is possible that this power out of the problem, if you have other normal power supply, You can replace the power supply to try to boot. Host Power also has a capacitor, if the power of the capacitor drum crack, the power must be a problem. If the power supply is normal, can not open the machine, you should also consider the host power switch is not a problem, such as press down did not bounce up. Open the key has not bounced up, did not bounce up will form a short connection, open no boot, of course, if the computer does not boot may be other problems. Do you have a horn alarm? Here are a few suggestions: 1, memory is not a problem? 2, the graphics card is not plugged in? 3, the motherboard or graphics card is not the capacity to drum up and so on