Hello! What should I do if the host fails to turn on?

What should I do if my desktop suddenly won't turn on?

Three methods, you look at which.

1) The memory module is loose, and it is OK to plug it in again.

b) Throw low and suck high 1976

Purple MSI] Discharge the BIOS battery (restore the BIOS factory default) It is recommended to plug and unplug the graphics card and memory, clean up the hygiene, and polish the gold finger of the graphics card and memory.

How to troubleshoot the failure of the computer without display when it is turned on (check whether there is a bulging capacitor).

Step 1: First of all, check whether the external wiring of the computer is connected, and plug in each cable again to see if the fault is eliminated.

Step 2: If the fault persists, then open the main chassis to check whether there is any excess metal in the chassis, or a short circuit caused by the deformation of the motherboard, and smell whether there is a burning paste in the chassis, whether there are burned chips on the motherboard, and whether the capacitors around the CPU are damaged.

Step 3: If not, then clean the dust off the motherboard and check if the computer is in good condition.

Step 4: If the fault persists, unplug the reset cable on the motherboard and connect it with other switches and indicator lights, and then use the change cone short-circuit switch to see if it can turn on.

Step 5: If you can't turn on the computer, then use the minimum system method, unplug the data cable of the hard disk, floppy drive, and optical drive, and then check whether the computer can be turned on. Then connect the above devices to the computer one by one, when connecting a certain device, the fault will recur, indicating that the fault is caused by this device, and finally focus on checking this device.

Step 6: If the fault persists, the fault may be caused by devices such as memory, graphics card, CPU, motherboard, etc. Then, use the plug-in method, swap method and other methods to check whether the memory, graphics card, CPU and other devices are normal, and replace the damaged devices if there are damaged devices.

Step 7: If the memory, graphics card, CPU and other devices are normal, then discharge the BIOS, use the isolation method, place the motherboard outside the chassis, connect the memory, graphics card, CPU, etc. for testing, if the computer can be displayed, then install the motherboard into the chassis for testing until the cause of the fault is found. If the fault persists, you need to return the motherboard to the manufacturer for repair.

Step 8: When the computer is turned on without display but there is an alarm sound, when the computer is booted up, the system BIOS starts to POST (power-on self-test), when it detects a fatal error in a device in the computer, it will control the speaker to send out a sound to report the error. Therefore, there may be a fault that the power is turned on without displaying an alarm sound.

If the computer is turned on and there is no alarm sound, the fault can be checked according to the meaning of the BIOS alarm sound to check the faulty device to eliminate the fault.

3) 1. Poor contact of the connecting wire, mainly caused by loosening, oxidation, and dust, clean up the plug and socket, plug and unplug it several times, or try to change the data cable.

2. There is a problem with the system program. Reinstall it.

If you don't know the description of the problem, I know that it won't turn on, or it will turn on automatically.

I'll tell you now that there are several situations when you can't turn on the machine, so let's judge it more realistically.

1. Power supply: see if there is a power outage, see if the power strip has power, and detect whether the power supply is faulty (the power supply can be supplied does not mean that it is good, but also depends on whether its power supply is stable);

2. The motherboard is faulty.

See if there is any abnormality in the capacitance of the motherboard, whether there is too much dust, and the heat dissipation of the north and south bridge chips;

3. It's hard to judge the CPU, so it's best to find a series of CPUs to try;

4. Memory, graphics card.

As long as it is judged that the CPU is fine, there will be an alarm sound when it is basically started, and the fault can be judged with more sounds.

What's the fun of living without computers and the Internet! Good luck with a speedy fix.