Solution 1 for the desktop computer that cannot be turned on after a sudden power outage:
The reasons and solutions for the computer that cannot be turned on after a sudden power outage are as follows: 1. Don’t worry, check the power supply first : Unplug the power plug of the motherboard, ignore other power supplies (such as hard disk), short-circuit the green wire and the black wire, the power supply fan should rotate, and there will be voltage output at this time. If it does not rotate, it is a power failure.
2. If the power supply is normal, you should suspect that there is something wrong with the motherboard. You can use the minimum system method to see if the motherboard starts? Then connect the components one by one. When the faulty component is connected and a crash occurs, that is the time. There is a problem with the part.
Solution 2 for desktop computers that cannot be turned on after a sudden power outage:
1. There are many cases where the system cannot be turned on. Generally speaking, there are probably several hardware reasons that cause the system to fail to turn on. 1 , The computer power supply fails, resulting in the inability to supply power to the host normally. Usually the host power supply is off
2. This type of failure occurs due to the memory module. It is usually caused by poor contact between the memory module and the motherboard memory slot. It can also be caused by damaged memory or problems with the motherboard memory slot. cause such malfunctions. There is usually a continuous long beeping alarm.
3. Mainboard failure is usually caused by the aging of the original components on the motherboard, resulting in no alarm after booting, but no video signal sent to the monitor.