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Anonymous users2024-02-071.The main bootloader is corrupted 2The partition table is corrupted.
3.The partition has an incorrect significant bit.
4.The DOS boot file is corrupted.
1: The system does not recognize the hard disk.
2. The hard disk cannot be read, written, or recognized.
Three: The system cannot be started.
Four: Bad sectors appear in the hard disk Five: The capacity of the hard disk is obviously inconsistent with the nominal value.
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Anonymous users2024-02-06The hard disk has bad sectors that can't enter the system, blue screen...
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Anonymous users2024-02-05Hard disks are divided into solid-state drives (SSDs), mechanical hard disks (HDDs), and hybrid hard disks (HDDs). The following is an introduction to the causes of computer hard disk failure, welcome to read!
1. The connection or setting of the hard disk is incorrect
of hard disks'The data cable or power cable is not in good contact with the hard disk interface, which causes the hard disk to fail to work normally, and two hard disks are connected on the same data cable, and the jumper of the hard disk is not set correctly, resulting in the BIOS not being able to correctly identify the hard disk.
2. Power supply problems of hard disks
If there is a problem with the power supply circuit of the hard disk, it will directly cause the hard disk to not work properly. Cause faults such as the hard disk not being powered on, the hard disk not being detected, the platter not turning, and the head not seeking.
3. Interface circuit failure
The interface is the channel for transmitting data between the hard disk and the computer, and the failure of the interface circuit may lead to the failure to detect the hard disk, garbled characters, and parameter misidentification.
4. The magnetic head chip is faulty
If there is a problem with the chip, the magnetic head may not seek correctly, the data cannot be written to the platter, the hard disk cannot be recognized, and there may be abnormal noises and other fault phenomena.
5. The motor drive chip is faulty
It is used to drive the hard disk spindle motor and voice coil motor. Today's hard drives are damaged due to high rotation speed, which causes high heat generation of the chip.
6. Hard disk bad sectors
The hard disk is often illegally shut down or improperly used and causes bad sectors, resulting in computer system file corruption or loss, computer failure to boot or crash.
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Anonymous users2024-02-041. Frequent abnormal shutdown, power failure, etc. will lead to bad blocks in the hard disk, and it is most likely to cause system failure after a sudden power failure, and the hard disk will be directly physically damaged.
2. The voltage is unstable, which is easy to cause physical bad sectors.
3. The damage of dust to the hard disk is very large, and it can be said that dust is the number one killer of the hard disk. As we all know, the contact between the head of the hard disk and the platter is very tight, and no dust is allowed, if the dust falls on the hard disk platter, then it is not too late to realize that the hard disk is from being damaged.
4. The circuit version on its back will also be damaged by static electricity. This is because when the climate is dry, the human body usually carries static electricity, in this case, touching the circuit board on the back of the hard disk with your hands, the human body static electricity may harm the electronic components on the hard disk, causing the hard disk to not function normally.
5. The hard disk will generate a certain amount of heat when it is working, and there is a heat dissipation problem in use. The temperature should be 20 25, too high or too low will change the clock frequency of the crystal oscillator. Temperature can also cause hard disk circuit components to malfunction, and magnetic media can cause recording errors due to thermal expansion effects.
6. Compress the hard disk frequently.
7. When the hard disk is reading and writing data, it is subjected to vibration, etc., or the method of disassembling and assembling the hard disk is improper, so that it is subjected to abnormal vibration or static electricity to break down the electronic parts.
8. Damaged by viruses, some Trojans will delete or format the computer.
Handling of bad sectors.
Repair or hide bad sectors of the hard drive after they are found to prevent them from spreading. >>>More
1. You hook this hard disk to other computers to do slave disks, and see if you can find them when you self-check the computer, 2. If you find them, enter the system to see if there is a disk letter, if not, open the PQ partition program to see if you can detect it from the disk, 3. If you can't do it, please enter the control panel--- management tools--- computer management--- point "disk management" to see if there is a detection of the disk, 4. All of the above are invalid, and they basically have to be repaired!
1. There is no response when the device is turned on.
When you encounter an iPhone that automatically shuts down, no matter how you press the power button, there is no response, isn't the phone broken in this case? >>>More
I don't know if the landlord asks about the hard disk damage is hardware or software, the software damage will generally occur, file loss, capacity size display error, partition loss, program operation is not normal and other phenomena. If the hardware is on, there is generally an abnormal sound of the active motor of the hard disk, an abnormal sound of the servo motor of the magnetic head, a power-on and boot display that the hard disk or the hard disk partition with boot data cannot be found, abnormal entry into the system, abnormal file reading and writing, etc. Generally speaking, the hard disk is a relatively durable part, and the probability of physical damage to the hardware is not high, but this is a delicate thing, and the distance of the head suspended on the platter is calculated in microns, so it is particularly afraid of vibration, and the violent vibration will cause the head to hit the platter, resulting in disk data loss and physical damage. >>>More
Oil seals are generally molded with oil-resistant rubber, and nitrile rubber is the most common oil seal and ring at present. Fault Cause Analysis Elimination Method Poor lubrication, serious wear of the lip working surface, width more than 1 3.