Win7 system Dell laptop suddenly shut down a variety of reasons and solutions

Reason analysis 1: General automatic shutdown may be caused by high temperature caused by too much CPU fan dust.

Solution:

If yes, clean up the CPU fan and The heat sink is dusty and the thermal grease is added.

Reason analysis 2: If this is not the problem, it may be caused by problems with the motherboard components or power supply, voltage instability, hard disk failure, etc., and the new hardware is not compatible, if you can not find out The reason to recommend repairing, because automatic shutdown is not a small problem.

Cause analysis three: Another system failure Trojan can also cause shutdown, but the probability is very small

Solution:

Try to restore the system or reinstall.

Cause Analysis 4: If you automatically shut down or standby without operating, it may be a problem.

Solution:

Right-click on the desktop and select Properties /Screen Saver /Power /Select a suitable solution for your solution from the drop-down list in the Power Scheme. The monitor will be turned off below. , turn off the hard drive, system standby, set the list of these three contents to “ never & rdquo; press the application (or set the appropriate time).

Open Control Panel/Open Hardware and Sound/Power Options/Select to turn off the display (select Never or set time) /Select the computer to go to sleep next to the drop-down list and select Never or select the appropriate time (Win7 system).

Reason analysis five: first use a virus anti-virus software to comprehensively check and see if it is a virus

Solution:

If you find out, directly kill the virus.

Reason Analysis 6: Check if the system file is corrupted.

Solution:

Click Start Menu - Accessories - Command Prompt - Administrator Run the identity and then try to verify and fix it with the chkdsk command.

Reason analysis seven: If the relevant machine software

Solution:

Try to uninstall all directly.

Cause analysis eight: If it is a driver problem

Solution:

We can solve it by upgrading the driver. I suggest you download a driver wizard to detect the driver problem.

Reason analysis nine: There may be a BIOS setup problem

Solution:

Enter the BIOS to restore the default settings or take the motherboard's battery out, reverse Deductive discharge, wait for 5 minutes to reverse the loading. Purpose: The BIOS settings are restored to the default values, and the BIOS's cooling presets are automatically restarted or shut down.

Reason Analysis 10: If the computer automatically shuts down when using one of the application software, the automatic shutdown failure may be caused by the program software. Generally, the program software can be uninstalled.

Reason analysis 11: Then check the power supply, the power quality is poor, the aging or power is too small, can not meet the power supply requirements of the computer accessories, can replace the high power

Solution:

A quality power supply, if the fault is removed, is an automatic shutdown failure caused by the power supply.

Cause Analysis 12: Then use the exclusion method to check the memory, graphics card, CPU, CPU fan, motherboard, etc.

Reason analysis thirteen: Check memory, memory quality is not good, poor heat dissipation, overclocking, different brands of memory mixing and CAS value setting is too low, etc. can cause the computer to automatically shut down, available test memory, and The memory parameters are adjusted accordingly in the BIOS.

Reason analysis 14: Check the motherboard, motherboard aging, capacitor failure or explosion, motherboard power pin, motherboard and chassis backplane short circuit, etc. can cause automatic shutdown

Solution:

You can take the motherboard out of the chassis for inspection or testing, then check if the CPU fan is rotating and the CPU temperature is normal. Then check if the bottom silicone of the CPU fan heat sink is dry. If it is dry, put the CPU fan on. Clean the silica gel and reapply a good silicone. If the fan is not working properly, replace the CPU fan.

Reason analysis fifteen: Dust is one of the factors that can cause the computer to automatically shut down. Dust can cause component aging, pin oxidation, poor contact and short circuit.

Solution:

For the faults caused by dust, it is generally more effective to use the cleaning method. The cleaning method is to eliminate the fault by cleaning the dust of the components in the computer mainframe.

Cause analysis 16: The power supply system is unstable, which can also cause automatic shutdown failures.

Solution:

Consider configuring a UPS with voltage regulation function. backup power.

Expand reading:

Three solutions for black screen non-response after forced shutdown of win7 system

The above is the reason for sudden shutdown of Dell win7 system laptop and its solution When you encounter the same problem, find the cause of the problem, and then solve the problem in the right medicine.