When my computer first started up, the hard disk squeaked, and it started slowly, just turn it on ag

A good environment is not only an important guarantee for the long-term stable operation of the computer, but also has a direct impact on the failure rate and life of the computer. China has formulated the national standard GB 2887-89 for the working environment of computer equipment, which requires the temperature of the computer working environment as follows:

Grade. When powered on.

In the event of downtime. Class A.

Class B. Class C.

As can be seen from the table, the national standard also has certain requirements for the ambient temperature after the computer is shut down. Because the ambient temperature changes too much, contact faults occur between connectors, and solder joints between components and circuit boards can also crack due to thermal expansion and contraction. After the computer enters the warm environment from the cold environment, it must pass an adaptation period before it can be turned on, otherwise it will produce condensation, and these small water droplets attached to the surface of the circuit board or components will corrode the components and circuit boards, and cause short-circuit faults in the heavy.

According to statistics, the reliability of a computer decreases by 25% for every 10 times the temperature exceeds the normal temperature. It seems that the statement that computers should also be anti-freeze is not a joke.

As far as components are concerned, they are divided into three grades: military grade, industrial grade and civilian grade according to different places of use and requirements. Devices with the same function but different grades** differ by several times, and their main difference is in their ability to withstand harsh environments. If the circuit board of the computer uses components with low temperature characteristics, it can only enter the normal state if it is warmed up for a period of time.

Some computers' power fans whirring when they are first turned on after entering the winter, and the noise gradually decreases after a period of use. This is due to the fact that the lubricating oil in the fan bearings is too viscous in winter, which leads to increased resistance. When the ambient temperature rises, the fault will disappear on its own.

For the same reason, when the ambient temperature of the hard disk is very low, due to the solidification of the lubricant in the bearing, the platter will not rotate due to high resistance, and there will be a fault of "the hard disk cannot be found".

If the hard disk is used for a long time, it will not affect the normal use. No way.

The hard drive may be broken, so back up the important data in advance.

The hard disk has been used for a long time, and there are bad sectors.

1. Hard disk bad sectors.

This is the most common cause of hard drive squeaking, and in many cases bad sectors are generated on the hard drive, which can be cleaned up by a disk cleaner or other specialized software.

Second, mechanical problems.

Fault solving: The solution is also very simple, disassemble the four screws that fix the circuit board, remove the circuit board, pick up the circuit board upward, there will be two rows of spring blades on the interface side of the circuit board, we need to carefully polish the contacts of each spring sheet with water sandpaper. At the same time, the corresponding contacts on the circuit board should also be polished and bright, and then the circuit board can be put back as it is.

3. Insufficient voltage.

In these two cases, the switching power supply used by our computer is not enough or faulty. For the phenomenon of unstable voltages of +5V and +12V provided by the power supply, we can use the multimeter test to judge. Too high or too low is not acceptable, and generally within 10% fluctuation can be considered a normal situation.

Fourth, the hard disk control chip is damaged.

Unlikely, because usually hard drives are less likely to fail than computer accessories unless they are subject to larger **.

If the computer hard drive keeps creaking, you can open the cover and clean it up by yourself or ask a professional.

The disk has bad sectors. Usually when you buy a new computer, people will install a lot of software, programs or movies in the computer, or use BT, a large number of long-term, continuous read and write are easy to cause hard disk damage.

It can be organized with a disk defrater, if it doesn't work, it can be repaired with special software, or a rough hard disk.

Generally, the hard disk is a little loud after a long period of use, which is a normal phenomenon. However, if it is a newer computer hard disk, it is estimated that the memory is small or the power supply is a problem, you can also consider increasing the memory and changing the power supply.

Sometimes when the hard disk is in use, it will suddenly "dangdang" and then it can no longer read and write data, restart the computer again, and the hard disk cannot be found in the BIOS. This kind of fault, sometimes the hard disk can still be found, the typical fault performance is that the hard disk is just turned on when the use is normal, but when the hard disk is used for one or two hours, the above phenomenon suddenly appears.