The hard disk cannot be read

There are many reasons why the hard disk cannot be read. I hope everyone can take the right medicine and avoid blind impulse.

The reason why the computer does not recognize the hard disk: After booting, the system does not find or cannot recognize the hard disk(recommended learning: PHP video tutorial)

Solution: This kind of problem usually causes the system to be unable to start with a hard disk. Even if you use other methods to start the computer, it is difficult for the computer to recognize the hard disk. Today's hard disks generally do not exist. Motherboard compatibility issues, and the cause of this type of failure is the connection between the hard drive and the motherboard. You can replace the connection between the hard drive and the motherboard, or take a look at the master and slave strips on the hard drive. Whether the line is set correctly, etc.

The reason why the computer does not recognize the hard disk: Improper BIOS settings lead to hard disk problems

Solution: This problem is mainly because the current motherboard uses automatic detection Hard drive type and brand model function, but some motherboards may have errors in recognizing the hard drive type during operation, and this situation may also cause the computer to not recognize the hard drive. To solve this problem, you need to make correct settings according to the motherboard's BIOS instructions and the hard drive itself.

The reason why the computer does not recognize the hard disk: There is a master boot program but the hard disk cannot be started.

Solution: The hard disk has a master boot area. If the master boot area fails, the computer It is normal that the hard disk is not recognized. To solve this problem, you need to enter the FDISK/MBR command in DOS mode. This is because the FDISK command file itself already contains a master boot program for the hard disk.

Identification methods

1. The computer hard disk suddenly cannot read the hard disk, which means that the hard disk does not recognize the disk. After the system cannot correctly identify the hard disk, first of all What you need to do is to eliminate problems with the hard disk itself and determine whether the hard disk is intact and can be used normally or whether the hard disk has been seriously damaged. This can be used to determine whether there is a problem with the mechanical part of the hard drive by listening to the sound that occurs when the hard drive rotates.

2. The hard drive will keep running as long as the OnePlus is powered on. Nowadays, the hard drive of desktop computers has reached a rotation speed of 7200RPM. It is normal for the mechanical part to make noise when working, so after a problem occurs It is also possible to diagnose mechanical problems by listening to the sound of the hard disk spinning.

3. When the machine is powered on for self-test, the hard disk will generally make a "da... da... da..." sound, and then return to calmness. This sound is relatively normal. If you hear this sound You can be relatively confident that there is probably no problem with the hard drive.

4. If the sound is "click...click...click..." and then "click...click" several times in a row, it is very likely that there is a problem with the hard disk. The worst-case scenario is that the hard drive makes periodic noises such as "Ta, Ta, Ta" during self-test, which indicates that there is a problem with the mechanical control part or transmission arm of the hard disk, or that the platter is seriously damaged.

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