The computer host does not respond when it is turned on, the light does not light up, and the fan does not spin?

The computer host does not light up or spin up the fan after it is turned on. Don’t panic if you encounter this problem. PHP editor Youzi found that there are many reasons for this failure, which may be related to the power supply, motherboard, CPU and other hardware. Next, we'll explore common causes of this issue and provide some troubleshooting tips. Read on to learn how to diagnose and fix this problem to get your computer running normally again.

#1. There is no power at all now. It is likely that the power cord is poorly connected to the external power supply, or there is a problem with the power socket.

2. If the computer power cord itself is not damaged, it is likely that the power supply is damaged. To judge, remove the power supply and power on, connect the blue wire and ground wire in the motherboard plug. If the power fan rotates, it means there is basically no problem with the power supply. .

3. It is also possible that a component in the power load is short-circuited, causing the power supply itself to be protected. The troubleshooting method can be to use the replacement method to find out the short-circuited components to solve the problem.

4. If it is not a peripheral component, it may be a problem with the motherboard itself. Finally, if other components have been ruled out, just replace the motherboard and try it!

5. If the fault persists, unplug the Power switch and Reset line on the motherboard as well as other switches and indicator light connections, and then use a screwdriver to short-circuit the switch to see if it can be turned on.

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