With the continuous improvement of the level of computer applications, more and more friends have participated in the Diyer team, they have been assembled a computer. It is not difficult. However, once the hardware failure of the computer, many beginners often feel that the hand is not unclear, and it is unclear. The author summarizes some experience in the process of excluding computer hardware failure, and organizes to share with friends. There is a reason for the cause of the hardware failure. Hardware itself is not good quality. Rough production processes, inferior production materials, non-standard specifications, etc. are all hidden factors that cause faults. This often leads to the duct welding of the device solder joint on the board, and the contact between the contacts is poor, and the wire is short-circuit open. 2. Human factors affect. The habit and application level of the operator should not be underestimated, such as a plug-in device, an error between the device, and the incorrect BIOS parameter setting can result in hardware failure. 3. Use the environmental impact. The environment here can include temperature, humidity, dust, electromagnetic interference, power supply quality, etc. Each impact is serious, for example, too high ambient temperature will undoubtedly seriously affect the performance of the equipment, and so on. 4. Other affected. Due to the normal wear and hardware aging of the equipment, hardware failures are often triggered. Steps to make a hardware failure to make a hardware failure now we have a general understanding of the reasons for hardware failure, then how should these faults? In general, we should follow the following principles: 1. After the hardware computer has failed, it is necessary to eliminate software reasons (such as system registry corruption, if the BIOS parameter is not set, the hard disk main guidance sector is damaged, otherwise it is easy to take away. 2. The failure caused by the host during each other is often more likely to discover and exclude, you can check the various wiring and its own working conditions of external devices such as the keyboard, mouse, display, printer. After excluding peripherals, consider the host. 3. The power source of the power supply is the key to the power source of the computer, the power supply is critical. Insufficient power supply, the output voltage is abnormal, etc., will cause various faults. Therefore, other components should be considered after the problem is first excluded. 4. First simple, complex current computer hardware products are not as fragile we think, so it is easy to damage. Therefore, when you encounter a hardware failure, you should start from the simplest reason. If the connection of various cables is normal, the various cards have a poor contact. After the above inspection is performed, the fault is still in the case, and the circuit portion or mechanical portion of the component can be considered in consideration of a complicated fault. Method 1 of repairing hardware failure for the subject matter Software Discussion Due to software settings, hardware cannot work well, then we can take the method: restore BIOS parameters to default settings (press [DEL] to enter the BIOS settings window after boot "→ select" Load Optimized defaults "Item → Enter the [Y] key confirmation → save the settings and exit); Restore the registry (press [F8] button after boot → select" Command Prompt Only "mode in the startup menu to start to pure DOS mode → Type" ScanReg / restore "Command → Select a registry backup file when using a machine to restore it); exclude hardware resources conflicts (right-click [My Computer] → [Properties] → Find and double-click on the [Device Manager] tab Equipment Name of Yellow Exclamation Number → Cancel "Using Auto Settings" option under the [Resource] tab and click the [Change Settings] button → Find and assign a resource that does not have conflictless resources). 2. Use the diagnostic software to help find faults, such as Norton Tools, etc., using a diagnostic software test. Diagnostic software can not only check the health of each component (such as CPU, memory, motherboard, hard disk, etc.) within the whole machine system, but also check the stability and system workability of the entire system.