Routine maintenance of the hard disk

First, the hard disk when using the common faults

1. For their older machines to upgrade, we put a new large hard drive, and the motherboard does not recognize:

Due to the existence of an earlier board 8.4GB capacity constraints, but now the hard drive capacity has greatly exceeded this limit. To solve this problem, one defines a new extension INT 13H. The new operating system does not use INT 13H disk addressing registers to pass parameters, it uses the operating system stored in the memory address of packets. Address package to save the 64-bit LBA address, if the hard disk supports LBA addressing, put the low 28 directly passed to the ATA, if you do not support, the operating system should first convert the LBA address of CHS address, re-transmission and handed ATA Interface . In this way, can be achieved on the basis of the ATA bus, CHS addressing the largest capacity is 136.9GB.因此. To normal use large-capacity hard drive, from the soft and hard in order to address. First gave the three kinds of solutions, for your reference:
(1) to upgrade the motherboard or BIOS:
The new motherboard BIOS interrupt INT 13H to read and write to the disk was extended, generally after the motherboard BIOS can be upgraded to support more than 8.4GB hard drive. In addition, you can use the BIOS expansion card (it has large-capacity hard drive provides the correct LBA addressing support).
(2) the use of DM's own hard drive partition software partition:
Use a special driver (usually the hard disk partitioning software that comes with DM), also provides INT 13H extensions. Resulting in the case of fixed motherboard that supports large hard drives. Generally speaking, the software can effectively convert the various parameters of large-capacity hard drive, the BIOS starts, the operating system will automatically pre-loaded to full capacity of the purpose of using the hard disk.





(3) using WIN98 or above operating system, hard disk format using FAT32, and make a reasonable partition.

2. Add a new hard drive after the system is unable to start:

Face this problem may be due to your WINDOWS if they are not installed in C drive but on the other drive letter. After the installation of a number of hard drives in the original hard drive where there are multiple partitions will cause the drive letter of the staggered, resulting in the original hard drive letter change. WINDOWS can not find the installation when it starts the default location of the file related systems naturally can not start properly. In the case of multi-partition hard disk partition is essentially this: the original C drive is still seen as C drive, while the second block of the primary hard disk partition will be considered as D drive, and then the first one the other hard disk drive begin to run from the E drive, then, is the second hard drive and other partitions. To solve this problem, is that when connected to a second hard drive when its re-partition, delete the primary DOS partition, only to expansion of area, so that the letter will not be staggered.

3. BIOS does not detect the hard disk, or in self-test when "HDD Controller Failure" the words:

If it is not detected hard drive may be connected to IDE hard drive interface cable to connect a good bit. Of course, if I DE cable connector connection is bad or there some broken, there will be such a phenomenon. If the above components through the replacement or do not improve, you have to consider the question of hard power, is not the power cord is damaged or not good contact. If it is self-test error, is also possible that the above-mentioned problem. Of course, if you will fall into the self-test disc when there is a serious periodic noise, it shows that mechanical control of your hard disk drive arm parts or have a problem.

Second, the hard disk when using the Notes

1. When the hard disk is being read and write can not be a sudden power failure

The hard disk read and write operation, in a high-speed rotation among the (currently usually 7200 r / min or 5400 r / min), should the power outage, could cause friction between the head and severe damage to the hard disk platter. So best not to a sudden shutdown, shutdown must pay attention to whether the panel on the hard disk light is still blinking, only when the hard disk light stops flashing, the hard disk read and write only after the end of the shutdown.

2. Pay attention to maintaining environmental hygiene

In the damp, dust, powder exceeded the environment seriously when you use the computers, there will be more absorption of pollutants to the surface of printed circuit boards, as well as within the spindle motor. Moist environment also make insulation resistance of electronic devices such as job instability. Must therefore be to maintain sanitation, reduction of air humidity and dust content. Remember: general computer users can not open the hard drive cover on their own, or in the air of dust into the hard disk, in the head to read, write operation scratched disc, or head. So when the hard disk fails, do not self-demolition drive enclosure, it should be transmitted to the professional factory repair.

3. Note that the hard disk shock

Hard drive is a high-precision equipment, work the surface of the floating head in the disc height of only a few microns. When the drive is read-write state, the event of a large shock, it could result in head impact with the disc, resulting in damage. So do not moving the operation of the computer. In the hard drive installation and removal process should be more careful, hard disk movement, transportation is strictly prohibited bump, it is best protected with foam or sponge packaging look to minimize vibration.

4. Pay attention to controlling the ambient temperature

The use of the hard disk should pay attention to anti-high temperature, moisture, anti-electromagnetic interference. Hard work will produce a certain heat, the use of existing cooling problems. Temperature to 20 ~ 25 ℃ is appropriate, the temperature is too high or too low will cause the crystal oscillator clock frequency change. Temperature can also cause failure of the hard disk circuit elements and magnetic media will also be due to thermal expansion effects caused by recording errors; the temperature is too low, moisture in the air will be condensed in the integrated circuit components, causing short-circuit. Humidity is too high, the electronic components may be adsorbed surface layer of water film, oxidation, corrosion of electronic circuits, resulting in poor contact, or even short-circuit, but also to make a change in magnetic media, magnetic force, resulting in the data read and write errors. Humidity is too low, easy to accumulate a large number of rotating machines generated by electrostatic charge, which will burn static CMOS circuits, the adsorption of dust and damage to the head, scratching the disk piece. The humidity inside the room at 45 ~ 65% is appropriate. Note that the air to keep dry or frequently to the system power-up, relying on self-heating machines, water vapor will evaporate. Also, try not to drive near strong magnetic field, such as speakers, speakers, motors, radio, mobile phones so as to avoid the data recorded in the hard disk damaged due to the magnetization.

5. Develop the use of a good habit and arrangement of the hard disk

The root directory of the general store system files and subdirectories, and other documents stored as little as possible. Always run the Windows Disk Defragmenter to organize the hard disk. Note that often delete the "garbage station" and the "\ WINDOWS \ TEMP" directory in the temporary files.

6. To prevent the destruction of computer viruses on the hard disk

Hard drives are the major targets of computer virus attacks, should pay attention to using the latest anti-virus software to prevent viruses. And pay attention to the protection of important data, and regular backups.

7. The hard drive to take France

Take the hard disk when you do not bump in the hand, this is just one of the requirements; Another taboo is "static." Climate dry easily generate static electricity, be careful in this case if the hard disk on the back of his hands touch the circuit board, the "static" is likely to be hurt on the hard disk of electronic components, leading to not work correctly. The correct posture should be in hand to seize the hard drives on both sides, and to avoid their direct contact with the back of the circuit board. In addition, some vendors (such as Seagate) in its hard outer layer of cuticle on the package, this cuticle addition to having the shock, but also to protect the circuit board in which, so users can pick up when the hard disk less scruples a.