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motherboard cable connection method

We installed a new machine when the connection will find a lot of need for connection on the motherboard. We installed a new machine when the connection will find a lot of need for connection on the motherboard. For hard drives, CD-ROM device to connect all of these are not unfamiliar. For hard drives, CD-ROM device to connect all of these are not unfamiliar. But some smaller cable or puzzled many friends, such as pre-usb cable, front audio cable, power switch, hard drive indicator light This type of cable. But some smaller cable or puzzled many friends, such as pre-usb cable, front audio cable, power switch, hard light of this type of cable. Today, computer repair network for friends summed up what so on cable connections, and I hope to you solve practical problems. Today, computer repair network for friends summed up what so on cable connections, and I hope to give you solve practical problems. (This article from the computer maintenance network) (This article is from computer repair network)
USB Interface USB Interface


USB cable to plug way up, six needles, are also eight-pin, 9 pin, 10 pin, but because USB cable to use +5 V power supply and ground, which determine the correct definition of our offer to help. USB cable to plug way up, six needles, are also eight-pin, 9 pin, 10 pin, but because USB cable to use +5 V power supply and ground, which determine the correct definition of our offer to help. Because the computer process will be used to air launch a large number of wide-band electromagnetic waves, in order to prevent these electromagnetic waves interfere with other household electrical appliances, use a steel chassis and cabinet ground. Because the computer will use the process of firing into the air a lot of wide-band electromagnetic waves, in order to prevent electromagnetic interference with other appliances, use a steel chassis and cabinet ground. Another point we need to understand not only the chassis ground, while also switching power supply chassis power supply to the secondary, which we usually call "the power negative." Another point we need to understand not only the chassis ground, while also switching power supply chassis power supply to the secondary, which we usually call "the power negative." Therefore, we determine the time when the USB interface, as long as the multimeter place * a file or on-file, test USB interface the needle and the chassis is the turn, so you can immediately judge the earth. Therefore, we determine the time when the USB interface, as long as the multimeter place * a file or on-file to test USB interface to the needle and the chassis is the turn, so you can immediately judge the earth. As long as that ground , and with every other 2-pin is the "power positive", that is, VCC side. As long as that ground, and with every other 2-pin is the "power positive", that is, VCC side. The rest can be ranked by position. The rest can be ranked by position. If you do not worry, we can continue to judge the power is. If you do not worry, we can continue to judge the power is. Because the USB +5 V power supply used is pin power plug from the ATX20 +5 V (red) or +5 VSB (purple) supply, as long as the measurements are what the root ATX power supply pin and turn red or purple on it. Because USB uses the +5 V power supply pin power plug from the ATX20 the +5 V (red) or +5 VSB (purple) supply, as long as the measurement of which of needles and the ATX power supply turn red or purple on it. However, some motherboard's USB power is not a direct supply is controlled by transistors, then measure the resistance with the USB interface, the same foot of insurance, that is, the power is. However, some motherboard's USB power is not a direct supply is controlled by transistors, then measure the resistance of insurance with the USB interface, the same foot, that is, the power is.

6-pin USB interface, which is the power and power to be shared. 6-pin USB interface, which is the power and power to be shared. 9-pin and 10 pin of the USB interface, each 9-pin null is to locate, to prevent the USB interface to reverse, resulting in burning board situation. 9-pin and 10 pin of the USB interface, each 9-pin null is to locate, to prevent the USB interface to reverse, resulting in burning board situation.

Front headset interfaces Front headset interfaces

Lead is also a 10 pin headset interface to a general, but of which a needle is empty, used to locate used. Lead is also a 10 pin headset interface to a general, but of which a needle is empty, used to locate used. We look at the stereo headset plug we will find, ¢ 3.5 plug only three lines on it. We look at the stereo headset plug we will find, ¢ 3.5 plug only three lines on it.

We can know that microphone and headphones can be common ground, while the microphone usually only need two lines (need 3 stereo line), of which one, the one is the power and signal, because the supply-side not directly related to the power phase, the multimeter can not measure whether and +5 V power supply terminal is connected to judge. We can know that microphone and headphones can be common ground, while the microphone usually only need two lines (need 3 stereo line), of which one, the one is the power and signal, because the supply-side not directly related to the power phase, the multimeter can not measure whether and +5 V power supply terminal is connected to judge. But we can know for sure, its location is adjacent to the microphone power supply side, separated by a left pin is the microphone sound Road, and then separated by one group is the right channel. But we can know for sure, its location adjacent to the supply side is the microphone, the microphone away from a pin is left channel, and then separated by one group is the right channel.
CD audio cable to connect CD audio cable connection

Better connected in the audio line installation, as long as the board was to find "CD_AUDIO" plug the word can, and do not worry that the situation reversed, because the CD audio line 4 line, the middle two are left and right channels , and both sides of the two is that no matter how you insert, to, or grounded, left and right channels reversed, and the general feeling in use is also not out, does not affect. Better connected in the audio line installation, as long as the board was to find "CD_AUDIO" plug the word can, and do not worry there is reversed the situation, because the CD audio line 4 line, the middle two are left and right channels , and both sides of the two is that no matter how you insert, to, or grounded, left and right channels reversed, and the general feeling in use is also not out, does not affect.

Onboard graphics output expansion Expansion of output onboard graphics

VGA output interface is three rows of 15 pins, while the board's expansion interface, two rows of 15 pins, seven or eight under. VGA output interface is three rows of 15 pins, while the board's expansion interface, two rows of 15 pins, seven or eight under. If you can insert in both directions, to find what marked with the number "1" position, the red line near the This location link on it. If you can insert in both directions, look for it labeled with the number "1" position, the red link near this location can be had.

Interface Infrared Interface IR

IR output interface is not used more general on-board infrared interface for 5-pin single row, including power supply terminal, ground terminal, data send, data collection, together with an empty side. IR output interface is not used more general on-board infrared interface for 5-pin single row, including supply side, the ground side, send data, data collection, together with an empty side. So, and USB interfaces, like, as long as the judge the power positive and negative power supply, and other like identified. And USB interface, so as long as power is and the power to judge the negative, the other like set.

Power light and hard light of connecting Power light and hard light of the connection

Now a lot of chassis are used pretty blue light, is very attractive. Now a lot of chassis are used pretty blue light, is very attractive. But we need to know, the blue light-emitting diode operating voltage is 3.8-4.5V, the red is 1.8V, green for the 2.1V, yellow 2.3 V, white to +5 V. some manufacturers to save hours of work, but also to enhance the attractive effect of blue light, the blue power light is not installed to install current limiting resistor, connected from the motherboard out of the +5 V power supply directly connected to the blue light-emitting diode, this access method to the high brightness LED, but with a very short time, not take a month, to come to an end. But we need to know, the blue light-emitting diode operating voltage is 3.8-4.5V, the red is 1.8V, green for the 2.1V, yellow for the 2.3V, white, some manufacturers for the +5 V. In order to save time and also to enhance the attractive effect of blue light, the installation of blue power light does not install the current limiting resistor, connected from the motherboard out of the +5 V power supply directly connected to the blue light-emitting diode, this access method to light high brightness control, but with a very short time, not take a month, on the demise of the. because we have to replace these tubes, it is best to install a limit of around 200 European resistance to to extend its service life. As we replace these tubes, it is best to install a 200 or so current limiting resistor in Europe, to extend its service life.

Power indicator wiring without the worry of the wrong, because the LED reversed, it will not burn, because the breakdown voltage is also generally more than ten volts, try more than once on it. Power indicator wiring without the worry of the wrong, because the LED reversed, it will not burn, because of the breakdown voltage V general are a dozen more, try more than once on it. For the hard disk light, in the connection, because the hard drive does not work, the light does not shine, we can use the hard disk scanning to continue emitting light, then the connection would be to check out. For the hard drive indicator light, connected, because the hard disk does not work, the light does not shine, we can use the disk scan feature allows the hard disk light continuous light, then the connection would be to check out.

Power switch and RESET, and PC Speaker Power switch and RESET, and PC speakers

Observation of letters marked on it, RESET is a reset button, PW or PW_ON is the power switch. Observation of the letters marked on it, RESET is a reset button, PW or PW_ON is the power switch. PC external speakers are four basic, intermediate space of the two. PC external speaker is four basic, intermediate space of the two. If the connector is directly plugged in side by side four core can be, and if the two are separated, and inserted in the "SPEAKER" on both sides of the line. If the connector is directly plugged in side by side four cores on it, if it is two separate, and inserted in the "SPEAKER" on both sides of the line.

Fan Fan Interface Interface

CPU fan, case fan, graphics card fan to worry about INSERT, because the connection has a socket on the stopper, with a CPU fan and chassis fan is +12 V, while the graphics card fan mostly +5 V, the installation of optional fan requires attention. CPU fan, case fan, graphics card fan to worry about INSERT, because the connection has a socket on the stopper, with a CPU fan and chassis fan is +12 V, while the graphics card fan mostly +5 V, the installation of optional fan requires attention. CPU and chassis fan for the three-pin, in addition to power and power is negative, and one for gun use, and can not, but it needs to do some settings in the CMOS. CPU and chassis fan for the three-pin, in addition to power and power is negative, and one for gun use, and can not, but need to do some settings in the CMOS.

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