Computer motherboard power supply

Motherboard power cord connection diagram

The motherboard power supply interface is on the motherboard. We can see a rectangular slot. This slot is the power supply that provides power to the motherboard. slot (as shown below).

The computer power switch wire connection diagram is as follows: The jumpers connecting the chassis to the motherboard generally include USB0, USB0, front audio interface (HD_AUDIO), and four motherboard jumpers: POWERSW, RESETSW, POWERLED, and HDDLED.

Computer host power cord connection diagram: First, install the power supply into the chassis. Among the power cables, find the 24-pin wire that supplies power to the motherboard. In the motherboard, find the 24-pin power connector, insert the power cord into the motherboard, and pay attention to the position of the power cord's bayonet. Among the power cords, find the 4-port cable that supplies power to the motherboard.

The computer motherboard is not powered on and the light does not light up. There are several reasons and how to solve it

Power supply system failure can be caused by AC power supply circuit breakage, abnormal AC power supply voltage, microcomputer power supply failure or short circuit in the host. Caused by other reasons.

The first step to determine whether the computer power supply is good or bad is to first connect the host power supply (ATX) and press the host switch button. If power cannot be supplied, unplug the power plug from the motherboard. Step 2: Use tweezers to short-circuit the green and black wires of the power supply and check whether the fan of the power supply can rotate.

Power supply problem Generally, after most motherboards e69da5e6ba90e799bee5baa631333365663464 are powered on, the indicator light on the motherboard will light up even if it is not turned on. If it does not light up, first check whether it is the power connection or the power supply itself. question.

Check the power supply: If the power supply is replaceable, you can try testing it with another known good power supply to determine if the problem is with the power supply. Check the hardware connection: Open the computer chassis and check whether the connection cable between the motherboard and the power supply is loose or broken.

The motherboard of the computer is not powered on and cannot be clicked. There are several situations: the computer's memory may not be plugged in properly and needs to be replugged or unplugged, or the gold finger of the memory stick may be wiped with an eraser. It may be that the computer's CPU is broken, causing the motherboard to not boot. This requires replacing the CPU.

Solution to the problem that the laptop motherboard cannot light up. If the machine does not light up, first unplug the power cord and data cable of the hard disk and optical drive, and unplug and plug in the memory to check.

If there is a problem with the computer motherboard, will it cause the power supply to burn?

1. If the installation is correct, it will not cause the motherboard to burn, but it may happen if the connection is wrong. The connectors on computer motherboards are not all the same. Only the interface for connecting to the power supply is the same. The connection to the chassis switch, USB interface, etc. are not all the same. When installing, you need to read the logo on the motherboard, and it is best to combine it with the manual.

2. It will burn. A truth. This is unlikely. The power supply has the ability to self-test. Short circuit detected. Will protect itself. Stop voltage output. . There is also excessive static voltage accumulated on the host. Contact with power source. Excessive voltage will burn out the power supply instantly. The moment power comes back after a power outage.

3. Hello, landlord. If the power supply is broken, the motherboard will be burned, but the reverse is not true. Generally speaking, if the computer motherboard is broken but the power supply is not broken, then after the computer is turned on, the fan of the power supply will spin, but then stop after spinning. If the power goes out, nothing will move.

4. The power supply will not burn, and the chance of CPU burning is also low. There are generally several reasons for a motherboard short circuit: unstable voltage causes the capacitor to burst, and the liquid state of the burst causes the motherboard to short circuit. This is common on old desktop computers, and is less likely to happen with current solid capacitors.

5. In theory, problems such as short circuit can damage the power adapter. But statistically speaking, a bad power adapter does not explain the problem. It is likely that the quality of the power adapter is not up to standard. Try another one. Can be damaged in 4 hours. Proves that the motherboard won't have any major problems.

Computer motherboard power supply failure

1. Hello, there are several possibilities for the computer host power light to flash: Generally, when the computer is in standby (sleep) state, the host power light will flash, which is normal. Phenomenon. It may also occur if the computer motherboard connection cable is connected incorrectly. If the hard disk read/write indicator light cable is connected to the power light, flickering may also occur.

2. How to deal with a laptop motherboard that is not powered on: When the motherboard is not powered on, first locate the specific faulty circuit of the motherboard's small power supply through the method of strong power. In other words, directly short-circuit the green and black wires. If it can be powered on at this time, it means that the fault lies in the soft startup circuit itself.

3. Sometimes our computer motherboard fails, causing it to not boot. What should we do? Let me briefly introduce the solution for you! Solution: The motherboard's boot circuit control methods include direct control through the south bridge, direct control through IO, and gate circuit control.

How to check the brand of power supply on a desktop computer motherboard

1. The first method: double-click to open "Computer", find "Control Panel" and click on it. Find "Device Manager" and open it. An option box will pop up, where everyone can find the information they want to see. Second method: Use hardware testing tools to check.

2. You can check the motherboard manual to know the detailed motherboard model. The motherboard, also known as the motherboard and motherboard, is one of the most important and basic hardware devices among computer components. Its important role is to interconnect the work of various computer hardware devices so that they can cooperate with each other when working.

3. Use third-party software to check the size of the power supply. For example, Master Lu, Drive Elf, etc. Taking Master Lu as an example, method: 1. Download and install Master Lu and other software; 2. Click "Hardware Detection" to view the configuration (display system, CPU, motherboard, memory, graphics card, hard disk, monitor, optical drive, sound card, etc. detailed information) .

4. Which brand of desktop power supply is good? There are so many desktop power supply brands on the market today, which can be said to be dazzling. First of all, you have to choose a big brand. Big brands are very solid in workmanship and materials. The so-called brand also means quality. Guarantee, do not be greedy for cheap, so as not to cause future troubles.

5. First: Look at the brand. When you are not an expert, it is best to know which power supply brands have good quality. Here is a list of some of the more famous brands in China. Huntkey, Great Wall, Delta, Kangshu, FSP, Xingu, and Cooler Master are all brands with pretty good reputations and are worth choosing.

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