Computer motherboard power jumper

Connect to the chassis

When installing the motherboard, many readers do not need to put the motherboard into the chassis and fix it, but how to use the chassis connection line! Next let's take a look at the chassis connection line --

① The four-core plug of the PC horn is actually only one or four wires. The one wire is usually red and it is connected to the speaker pin on the main board. This is marked on the motherboard, usually the speaker. When connecting, pay attention to the position of the red line corresponding to 1 (Note: The red line corresponds to the position of 1-some motherboard marked as "1" and some marked as "+", depending on the situation ).

② The reset connector is connected to the reset key of the chassis. It must be connected to the reset pin on the motherboard. The reset pins on the motherboard work like this: when they are short-circuited, the computer restarts. The reset key is a switch that causes a short circuit when it is pressed. When the hand is released, the open circuit is restored, and the computer restarts immediately after a short circuit. Occasionally, when you press the reset key and release it, but it does not play up and keeps short-circuiting, the computer will not stop restarting.

③ There is a switch wiring for the total power supply on the ATX chassis, which is a two-core plug. It is the same as the reset connector. It is short-circuited when pressed, open when released, and click it, the total power of the computer is switched on, and then shut down after one click, but you can also set it in the BIOS to shut down after the power switch for more than four seconds, or you can't simply press the switch to shut down, but you can only rely on the software to shut down.

④ This three-core plug is the wiring of the power indicator. It uses 1 or 3 bits, and the line 1 is usually green. On the motherboard, the pin is usually marked as power. When connecting, note that the Green Line corresponds to the first needle (+ ). When it is connected, the computer is turned on, the power light is always on, indicating that the power is turned on.

⑤ Dual-core connector of the hard drive indicator, the first line is red. On the motherboard, such a pin is usually marked with an IDE led or HD led, and the connection should be redlined to one. After this line is connected, when the computer is reading and writing the hard disk, the hard disk lights on the chassis. Note that this indicator can only indicate the IDE hard disk, but not the SCSI hard disk.

Next, we need to insert the power supply, hard disk, speakers, reset, and other control connection terminal lines on the chassis into the corresponding pins on the motherboard. Connecting these indicator lines and switching lines is cumbersome, because different boards have different plug-in definitions. Which of the following are used to connect the indicator lines, which of the following cables are used for plug-in and switch operations can be clarified only by reading the motherboard instructions in the white book. Therefore, we recommend that you connect these cables before placing the motherboard into the chassis. In addition, the power switch and reset (reset switch) of the motherboard are in no direction. You only need to find out the plug-in. HDD led (hard drive light), power LED (power indicator light), and so on, because the use of light-emitting diodes, so the plug-back cannot shine, be sure to carefully check the definition of the positive and negative sides of the plug-in.

Reference: http://www.cedu.cn/bbs/dispbbs.asp? Boardid = 34 & id = 24361)