The computer will automatically shut down as soon as it is turned on and the system is entered

Possible causes and solutions for automatic shutdown of the computer immediately after it is turned on:

There may be a momentary short circuit or hardware damage on the computer, remove the hardware one by one for testing.

The CPU is not in flat contact with the heatsink.

Remove the foreign matter, apply thermal grease to the CPU, tighten the bolts that hold the heat sink and the CPU tight, and observe the CPU and the heat sink without interruption with the naked eye.

The thermal grease between the CPU and the heat sink is not evenly coated.

Same as the solution in the preceding paragraph.

The power supply capacity is too small, resulting in insufficient power supply or broken fuse in the power supply.

Replace the power supply with a large capacity, or if there is no short circuit causing the fuse to break, replace the fuse.

The CPU cooling fan is not powered on or the fan is broken, and the motherboard BIOS self-test is shut down protectively.

Plug in the CPU cooling fan plug and double-check that it is not plugged in the wrong position, causing the fan to turn incorrectly or switch to a good fan.

Precautions: Do the above things after shutting down and disconnecting the power supply.

The temperature is too high. Today's CPUs have overheating protection, once the CPU temperature exceeds the value set in the motherboard's BIOS, the system will automatically shut down to protect the CPU from being burned. It is recommended that you check the settings in the motherboard BIOS, 2

See if the protection temperature of the CPU is set too low, and then set the appropriate temperature again.

3.The quality of the computer's power supply. Power supply quality does not simply refer to the quality of power supply, it also includes whether the external voltage is stable. If the local power is tight and the voltage is not stable, it is best to configure a UPS regulator for the computer.

Reinstall the operating system first to troubleshoot system issues. Check the settings for CMOS power management; If the heat dissipation capacity of the CPU fan is insufficient and the CPU temperature is too high, the automatic protection function of the CPU and motherboard will automatically shut down without reason. power failure; Or the power supply of the host is faulty, and the voltage fluctuates greatly, resulting in irregular automatic shutdown or restart. Or the voltage of the external power supply is unstable, and the stabilized power supply can be added.

Hello, look at your description, it should be that the power supply is burned out, and it can be solved by replacing the power supply.

If the replacement power supply is still not good, it means that there is a problem with the motherboard, resulting in unstable power-up.

- Drifting in the wind.

Unplug the power cord. Press Power on to discharge power once. Plug it in again and try it on.

First of all, please rule out the problem of the boot button.

It could be that there is a problem with your computer's hard drive or your operating system.

It should be a heat dissipation problem, if it is not a change of power supply.

Let's reload. My computer was reinstalled for similar reasons to yours.

Reason for automatic shutdown of the computer:

1.Poor heat dissipation, power failure, and motherboard failure may cause the computer to shut down automatically or restart repeatedly. (Reboot is an important feature: sometimes it shuts down, sometimes it restarts).

2.When the core components of the system are damaged, the running computer may automatically shut down. Kingsoft security experts are here to provide you with special killing tools and system repair tools, please click Fast**.

3.In the running software, there are some software with the option to shut down when the task is completed, and the user may not have noticed and turned these switches on.

These software are more common, such as Thunderbolt, Express, anti-virus software, BT**, **** and so on. In the software settings, there is an action that automatically shuts down after completing a certain task. But generally the default setting is off.

The purpose is to automatically shut down the computer when a task is completed when a task is running a more time-consuming operation.

4.Other hardware reasons.

The solution to the automatic shutdown of the computer:

1.First of all, check whether there is a problem with the hardware, focusing on the power supply of the motherboard, CPU fan, host power supply, and power socket.

2.Check if there are some applications that have enabled shutdown after the task is completed. This is evident from this. The feature is that before shutting down, there will always be a program that has been run, and a dialog box will generally pop up to remind you to shut down.

3.Resolve virus Trojans and repair system damaged files. With the latest version of Kingsoft Antivirus 2011, you can complete virus removal and system configuration repair at one time. "

It should be the temperature of the graphics card or CPU. The next software can detect the temperature of the 3 major hardware. QQ housekeeper has it at home.,I used to have such a problem.,Later, I changed the fan of the graphics card.。 According to my analysis, it should be a fan problem.

1. Let's see if there is a problem with your system, 2. If the motherboard is not set up correctly, 3. The motherboard is wrong, 4. The power supply is abnormal.

You start by removing the dust from the host.

Clean the lower memory module again.

If it doesn't work, check the CPU cooler to see if the heat dissipation silicone is dry.

Modern motherboards now have a generation of Wake-on-LAN capabilities.

You can see if there are any options in the BIOS settings.

Or what about the jumpers on the motherboard?

It also supports keyboard and mouse wake-up.

The following scenarios are possible:

1. Power supply problem: first change the power supply problem to see, if there is still this kind of problem, and then the multimeter to detect the voltage there to see! Sometimes unstable voltage can also lead to automatic shutdown.

2. Motherboard problem: If conditions permit, try to change the motherboard of the same platform!

3. Memory problem: Remove the memory module, wipe the gold finger with an eraser and then wipe it tightly.

4. Check whether all the lines are plugged in tightly and see if the lines are loose!

5. Try a better CPU fan, sometimes the CPU is not hot, but the fan speed is slow and the above problems may occur!

6. Set up the motherboard BIOS, don't overclock, and turn off the CPU overheating protection!

Sometimes hardware problems are difficult to detect with software! So, it's best to try something of the same kind!

I hope LZ can solve the problem as soon as possible!

1. For heat dissipation problems, check the lower fan.

2. Voltage problems, see if the voltage is normal there, and whether the computer often restarts at a time period.

3. Check the capacitance of the motherboard and the capacitance of the graphics card.