★ "Dust Black Boy": Too much dust in the machine can also lead to a crash. If the floppy disk drive head or the laser head of the CD-ROM drive is contaminated with too much dust, it will lead to reading and writing errors, which will seriously cause the computer to crash. Using Tencent Computer Manager to clean up the computer cache garbage, and using the system disk slimming function, the speed of the computer is obviously improved. The system disk slimming can effectively clean up the useless garbage of the C disk, release disk space, and make the computer run more smoothly.

★ "Software and hardware incompatibility": For example, 3D production and some special software may not be installed or started normally on some computers, and there may be problems with software and hardware compatibility.

★ "Memory decline": mainly caused by loose memory and self-quality. The corner fault of memory stick should be eliminated according to the specific situation. If there is a problem with the quality of the memory, the memory needs to be replaced to solve the problem.

★ "Hard disk failure": mainly bad tracks and bad sectors caused by hard disk aging or improper use. This makes it easy for the machine to collide when moving. Special tools and software can be used for troubleshooting. If the damage is serious, only the hard disk can be replaced. In addition, for motherboards that do not support UDMA66/ 100, we should pay attention to the setting of hard disk operation mode in CMOS.