How to detect the computer power is broken?
Power is broken, it is not a machine. Power performance is a serious recession, it will suddenly restart, blue screen, all kinds of instability, and even damage the hard disk.
Replace the power cord, if so, that is, the power cord is broken
First, the replacement method: the need to check the power supply and a OK OK to change the power of work, according to the working state after the swap to determine whether it is good or bad. Second, the measurement method: . to confirm the corresponding input voltage is normal, the measurement output 20P plug (some 24P) in the +5 V (red line) and COM (black line) between the +5 V voltage, measuring PS-ON Green line) and COM (black line) whether there is greater than + 1.8V voltage. If the voltage is not the wrong power supply, if the above voltage is correct to enter the next step measurement. . the output terminal 20P plug (some 24P) in the PS-ON (green line) and COM (black line) short circuit. The power supply fan should operate. At this time, all the output voltage is measured and compared with its rated parameters. If the voltage exceeds the allowable error range, the power supply is bad, and if the voltage is within the allowable error range, the power supply is good.
