& Lt; Win7 hardware fault analysis & gt;

 

View the running hardware information of the current system.

Right-click computer -- properties -- Device Manager to see the following:

 

 

Some common hardware faults:

Motherboard fault

Abnormal startup, occasional sudden power failure

It is clear that you have chosen to shut down, but you still cannot shut down or restart, (motherboard short circuit phenomenon)

 

CPU fault:

Unable to power on

 

Memory faults: common types (DDR2/DDR3)

The screen is not displayed, and the sound of "Didi" keeps ringing. (There may be a lot of dust in the memory. This is a common phenomenon in the data center at school. Sometimes it's a good command)

 

Video Card fault (Integrated video card is not easy to break, usually independent graphics card)

The screen is not displayed and a warning is sent.

The screen is displayed, but the screen is displayed.

 

Hard Disk troubleshooting (this book has been broken or written to =)

+ Fatal faults

"Self-check hard disks are often required during boot, and the detection is several hours or dozens of hours. (In this case, change the hard disk as early as possible, and it may take a long time to detect the hot and hot cup)

Some files cannot be read, leading to crashes

In this case, you can only change the hard disk.

Non-fatal fault

Slow computer response

> Use the chkdsk tool to check the logical Bad Sectors of the hard disk. If your hard disk is scratched, it is useless.

> Complete disk fragmentation cleaning

Enter chkdsk in the win command line to start detecting the file system. The following result is displayed:

Windows has checked the file system and confirmed that there is no problem.

UsnLog verification is completed.

WindowsCheck the file system and make sure there are no problems.

51097599 KB in totalDisk space.

13513732897536 KB in files.

27479Index (90064 KB).

Bad slice 0 KB.

317063 KB is being used.

The log file occupies 65536 KB..

Disk 17792936 KBAvailable.

 

4096 of each allocation UnitBytes.

A total of 12774399 DisksAllocation units.

4448234 on diskAvailable allocation units.

 

Chkdsk/fNot only does the hard disk's bad track be detected, but it will also be forcibly repaired,Because my computer is in use, it will prompt to detect this volume the next time it starts.

 

C: \ Users \ lenovo> chkdsk/f

The file system type is NTFS..

The current drive cannot be locked.

The volume is being used by another process and cannot be used.

Run Chkdsk.

Are you planning to check this volume during the next system restart? (Y/N) y

 

This volume will be checked during the next system restart.

 

By default, only C is detected.Disk, if you want to detect DDisk or FDisk:

 

C: \ Users \ lenovo> chkdsk D:

The file system type is NTFS..

 

Warning!F is not specifiedParameters

Run CHKDSK in read-only mode.

 

CHKDSKVerifying file (Stage 1/3 )...

Processed 92672File records.

File verification is completed.

Processed 13Large file records.

It takes a long time to detect ...................

 

 

You can also use it in graphical mode: Right-click -- computer -- Properties

 

 

Check the disk shards before sorting them out.

 

Independent hardware installation-driver

Brand computers can be posted on the official website

Download driver genie from Assembly Machine"