php Xiaobian Banana will take you to understand the details of motherboard power supply: On the motherboard, what powers the motherboard is the 24-pin or 20-pin main power interface from the power supply, and the 4-pin or 8-pin CPU power supply interface. The energized circuit is mainly responsible for delivering power to various components of the motherboard to ensure the normal operation of the computer. For DIY enthusiasts, it is crucial to understand what these wires do and how they are connected.
The answer is that the line that powers the motherboard is the 24PIN line on the motherboard. It is usually a combination of 20 and 4PIN lines. It is also for compatibility with the old 20PIN motherboards. Now the newly purchased motherboards are all 24PIN. , the 24PIN power cord supplies power to the motherboard. It is the largest of all cords and can be recognized at a glance. The CPU is composed of 4 4PIN power supply lines. At present, the power supply to the CPU by new motherboards is basically upgraded to 8PIN, so it is also called the 8PIN power supply line.
First, you need to determine which power supply cable you want to remove, then turn off the computer's power switch and unplug the power plug.
Next, find the connector of the power supply line. Usually you need to press and hold the buckle on the connector to pull it out. If the connector is too tight, you can use some force to pull it out, but be careful not to use excessive force to avoid damaging the motherboard or the connector.
After the disassembly is completed, the power supply line can be checked for any damage or corrosion so that it can be replaced or repaired in time.
1. CPU power supply interface. The CPU power supply cable socket is usually in the upper left corner near the U. The 8PIN power supply cable of the CPU will be marked, but many people are easily confused with the 8PIN of the graphics card. In fact, it is easy to identify. Generally, the CPU is composed of 4 4 and 8, and the graphics card It is 6 2 which makes 8. If they are all 8PIN, there will also be text on the surface.
2. Mainboard power supply interface. The motherboard interface is very easy to identify. Find the 24-pin interface and insert it in the correct direction.
3. Graphics card power supply interface. The power supply interface of the graphics card is similar to that of the CPU. You only need to plug in a few interfaces on the graphics card to fill it up.
4. Hard disk interface. The hard drive power supply cable is generally a flat SATA port, and the SATA power supply cable is also designed to be fool-proof. If it is in the wrong direction, it cannot be inserted normally. There are generally two ways to identify the direction, one is the corner of the interface, and the other is the empty port of the second interface. , and the motherboard header of the SATA cable is also the same. Just connect the hard drive power supply cable and the motherboard header.
5. Chassis Fan Interface: Some chassis come with their own fans, or some players purchase and install a chassis fan. The power supply line of the chassis fan is usually a large 4D port. The direction of the large 4D port is easy to identify and can be directly plugged into the power supply. Just interface.
6. Audio and USB interfaces
The front audio and USB interfaces have corresponding interfaces on the motherboard, and there are also English prompts. Just install them normally. And the front audio only has one corresponding fool-proof interface.
7. Indicator light cable interface
HDD LED represents the hard disk light, POWER LED is the power light, RESET SW is the reset button, POWER SW is the switch, PC SPEAKER is the PC speaker, these are The interface can be said to be the most important point, especially the power button. There is usually a mark on the motherboard. Just plug it in according to the instructions on the motherboard.
Short-circuiting the motherboard power supply line will cause excessive current, which may cause overheating or even burn the CPU. The motherboard power supply line is designed to provide appropriate current and voltage to the CPU. If a short circuit occurs, the current will exceed the CPU's tolerance, causing overheating and damage. Therefore, be sure to avoid short-circuiting the motherboard power supply line to ensure that the circuit is working properly to protect the safe operation of the CPU.
The difference between the 8-wire and 4-wire motherboard power supply lies in the power output and interface type. 8-wire power supply usually refers to the 8PIN EPS interface of the ATX power supply, which is used to supply processors with high power consumption. This interface generally consists of two 4PIN power cords, and can add power distribution connections to ensure that the processor can work stably. This power supply method is suitable for high-end motherboards and computers that require high-power processors and overclocking. 4-wire power supply usually refers to the 4PIN ATX interface of the ATX power supply, which is used to supply motherboards and other components with low power consumption. This interface provides lower power stability and power and is suitable for most common motherboards and some lower-power processors and components. In summary, 8-wire power supply is suitable for high-end computers that require high-power processors and overclocking, while 4-wire power supply is suitable for most ordinary motherboards and some lower-power processors and components.
uncertain. Motherboard power cables are usually divided into two types: 20 4-pin and 24-pin. The pins are different, so the lines may be different on either end.
20 The 4-pin motherboard power cable contains 20 pins. If you want to connect it to a 24-pin motherboard, you can insert the 4 pins into the top of the 20-pin header. The 24-pin motherboard power cable contains 24 pins and cannot be used with the 20 4-pin header because it is easily confused with other connectors. Therefore, when purchasing a motherboard power cable, carefully check the number of pins and how they are connected to make sure they are compatible with your motherboard.
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