How many volts does the color line of the power output of the computer represent? How to test his good or bad? Please help, thank you?
Computer power supply is 220V alternating current, converted to direct current, and specifically for computer accessories, such as motherboards, drives, video cards and other power supply equipment, is the computer parts of the power supply hub, is an important part of the computer. At present, most of the PC power supply is switching mode power supply.
This is the line number of the power:Black --- ground wire (negative electrode)Yellow - positive 12VRed --- positive 5VMultimeter pointer dial to v- (DC voltage) 20V (or 50V) fileMultimeter black line to black lineThe red line of the multimeter is yellow (or red)To see if the voltage is correct, note: when no-load, the voltage is higher than the rated voltage.This is the line number of the main board:Red: on behalf of the +5V power line (motherboard, hard disk, CD-ROM and other hardware chip voltage).Yellow: represents the +12V power line (hard disk, CD-ROM, fan and other hardware voltage on the work, and -12V to the serial port to provide EIA power).Orange: represents the +3.3V power line (powered directly to the DIMM and AGP slots).Grey: on behalf of the P.G line (power line status information, which is obtained by some other power line circuit calculation results, when you press the button after the computer starts, signal power good signal that there is no boot the motherboard fault automatic monitoring).Blue: represents the -12V power line (providing EIA power to the serial port).White: represents the -5V power line (floppy lock phase data separation circuit).Purple: represents the +5V StandBy power line (power on a small part of the motherboard after shutdown) to detect various boot commandsGreen: on behalf of the PS-ON signal line (motherboard power on / off the signal line, there is a certain voltage when there is no connection)
Red: on behalf of the +5V power line (motherboard, hard disk, CD-ROM and other hardware chip voltage).Yellow: represents the +12V power line (hard disk, CD-ROM, fan and other hardware voltage on the work, and -12V to the serial port to provide EIA power).Orange: represents the +3.3V power line (powered directly to the DIMM and AGP slots).Grey: on behalf of the P.G line (power line status information, which is obtained by some other power line circuit calculation results, when you press the button after the computer starts, signal power good signal that there is no boot the motherboard fault automatic monitoring).Blue: represents the -12V power line (providing EIA power to the serial port).White: represents the -5V power line (floppy lock phase data separation circuit).Purple: represents the +5V StandBy power line (power on a small part of the motherboard after shutdown) to detect various boot commandsGreen: on behalf of the PS-ON signal line (motherboard power on / off the signal line, there is a certain voltage when there is no connection)Black: ground of a system circuit
Voltage definition of color line for computer power output voltage:yellow+12V (standard range: +11.40-+12.60)blue12V (standard range: -10.80--13.20)gules+5V (standard range: +4.75-+5.25)white5V (standard range: -4.50--5.50)orange+3.3V (standard range: +3.14-+3.45)Violet+5VSB (+5V standby power) (standard range: +4.75-+5.25)greenP - ON (power on / off side)
