~Computer Trouble Emergency Guide~

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~Computer Trouble Emergency Guide~ [Copy link]

In the process of using computers, it is inevitable to encounter many sudden failures. These failures may be caused by software reasons, hardware failures, or other factors... So, how should we, the primary computer users, deal with these events? Please see below:
Encountering power outages
　　
　　Phenomenon: The display, host, speakers, etc. will be "forced to shut down" in an instant.
　　Phenomenon analysis: This is caused by a sudden "power outage". The voltage fluctuations generated by the power outage will impact the chips, circuits, resistors, etc. of the computer hardware. Once you are performing disk read and write operations when the power outage occurs, bad sectors may be generated, or when you are writing a manuscript, the data will be lost... The
　　right strategy: Choose a brand power supply when equipping the computer, so as to minimize the adverse effects of voltage fluctuations on the hardware from the power supply. After a power outage, turn off all power supplies to prevent the display and some ATX power supplies from starting at the same time when the next call comes, which will cause adverse damage to the hardware. When you use WORD to edit a manuscript, use WORD's automatic save function. If you are operating the disk at the moment of power outage, it is recommended that you do not skip the disk detection at startup next time to check whether there are bad sectors. Once bad sectors are found, use NORTON, PQMAGIC and other tool software to repair or block the bad sectors. In addition, if you can afford it, it is recommended to purchase a UPS to provide power-off protection for the computer for a period of time.
Automatic shutdown
　　Phenomenon: The computer suddenly shuts down or restarts the system automatically during normal operation.
　　Phenomenon analysis: Today's motherboards have a temperature monitoring function for the CPU. Once the CPU temperature is too high and exceeds the temperature set in the motherboard BIOS, the motherboard will automatically cut off the power supply to protect related hardware. On the other hand, power management and virus software in the system can also cause this phenomenon.
　　What to do: If the above-mentioned sudden shutdown phenomenon occurs all the time, first confirm whether the CPU heat dissipation is normal. Open the case and visually check whether the fan blades are working properly, and then enter the BIOS option to check the fan speed and CPU operating temperature. If it is found that the problem is the fan, perform relevant dust removal maintenance on the fan or replace it with a better quality fan. If the hardware is excluded, enter the system, install the power management from the installation CD of "Kiss to Death", and then thoroughly check and kill the virus. When these factors are excluded, the cause of the fault may be the aging or damage of the power supply, which can be confirmed by replacing the power supply. If the power supply is broken, replace it with a new one. Do not continue to use it, as it will burn the hardware.
System crash
　　Phenomenon: The desktop is locked, the mouse cannot move, and in serious cases, even hot boot (ALT+CTRL+DEL) does not work. There is also a blue screen phenomenon.
　　Phenomenon analysis: The bug of the "Kiss to Death" system itself and the compatibility issues between various software are the causes of the fault. It may also be that the user runs too many large programs at the same time, resulting in process blocking and causing the crash.
　　Countermeasures: There are two types of crashes, real crashes and false crashes. The easiest way to distinguish between the two is to press the Numlock key in the keypad area and observe whether its indicator light changes. If it does, it is a false crash; otherwise, it is a real crash. For a false crash, you can press ALT+CTRL+DEL at the same time. Select the program name in the task list that appears, mark the item that does not respond, and click End Task. Really, the only way is cold start. For blue screen, after pressing the ESC key is invalid, choose to restart and press the reset button on the chassis panel. For compatibility issues, you can solve them by uninstalling the "problematic" software and updating the motherboard BIOS and related motherboard drivers.
Virus attack
　　Phenomenon: The system runs slowly, crashes, illegal operations, the hard disk light flashes randomly, the blue screen often appears, and inexplicable system prompts...
　　Phenomenon analysis: The virus is essentially a malicious computer program code. The virus replicates itself in large quantities and runs secretly in the system at the same time, occupying system resources. In serious cases, it will also cause damage to software and hardware, such as CIH, hard disk lock, etc.
　　Countermeasures: The higher the road, the lower the devil. The nemesis of the virus is the antivirus software. Once you suspect that your machine is infected with a virus, please restart the system to DOS and run the genuine antivirus software (DOS version) to kill the virus that cannot be killed under "Kiss to Death"; then restart to the system desktop and run the WINDOWS version of the antivirus software for another antivirus. On the other hand, since the virus will destroy some files when it attacks seriously, we should back up important files to other drives besides the C drive before the virus attacks, and set the attributes of the data files to read-only. At the same time, everyone should always update the virus database of anti-virus software, use less pirated discs, and friends who have access to the Internet should never download unknown email attachments. System failure
　　Phenomenon: Cannot enter the system, typically manifested as passing the self-test, stopping at the startup screen, or displaying: The disk is error and many other phenomena with E-text prompts.
　　Phenomenon analysis: This is a system failure, which can be caused by many reasons. The most common one is that the system files are modified, damaged, or an abnormal command line is loaded. In addition, hard disk failure is also one of the reasons.
　　Countermeasures: First, try to enter the safe mode. Press the F8 key when turning on the computer and select the third item in the startup menu: Safe model. After entering the safe mode, you can use the device manager and system file checker to find the fault. If you encounter a "!" sign, you can find out the true identity and then determine whether to del or set an interrupt. You can also reinstall the driver. Damaged system files can be restored from the installation files (it is recommended to copy the WINDOWS installation disk to the hard disk in advance). If you cannot even enter the safe mode, boot to DOS through the bootable CD or floppy disk. In DOS, first perform a virus scan and use Dir to check whether the system files in the C drive are complete. If necessary, you can use the system floppy disk to perform Sys C: to restore the relevant basic system files. If no files are found in the C drive, you can only completely reinstall the system.
Driver loss
　　Phenomenon: 16-color display when booting, and "XXX" device is occupied when playing audio files.
　　Phenomenon analysis: After excluding the cause of viruses, this phenomenon often occurs on old machines that have been used for N months, or the user has recently moved the components in the host (such as graphics cards and PCI cards), which may cause poor contact of the hardware, resulting in the system not actually detecting the relevant hardware thoroughly.
　　Countermeasures: Reinstall the graphics card driver and check whether the related accessories are in full contact with the motherboard: First, ensure that the gold fingers of the graphics card and sound card are clean; second, insert them into the relevant slots with appropriate force, align and insert vertically, and then connect the matching speakers and monitor cables. If necessary, you can change the slot position of the PCI card to avoid resource conflicts with the graphics card.
Black screen at startup
　　Phenomenon: Black screen at startup, no display, and there may be an alarm.
　　Phenomenon analysis: Poor contact between hardware or hardware failure. The related hardware involves memory, graphics card, CPU, motherboard, power supply, etc. The computer must be powered on first, then the motherboard BIOS guides the self-test, and then passes the CPU, memory, graphics card, etc. This process is reflected on the screen as self-test, first through the graphics card BIOS information, then the motherboard information, and then the memory, hard disk, optical drive, etc. If there is a problem in any of these steps, the computer cannot start normally, or even a black screen.
　　Countermeasures: First, confirm whether the external and internal connections are connected smoothly. External connections include monitors, host power supplies, etc. Internally, there are connections between the host power supply and the host power supply interface (sometimes the contact here is poor). The more common reasons are: the graphics card and memory have been used for too long and have been in contact with dust in the air for a long time, causing an oxide layer on the gold finger, resulting in poor contact. In this regard, use cotton to dip a moderate amount of alcohol to wipe the gold finger back and forth, and insert it back after it dries. In addition, observe whether the CPU is working properly, turn on the computer for about half a minute, and touch the heat sink of the CPU fan with your hand to see if there is temperature. If there is temperature, the possibility of CPU failure can be basically ruled out. If there is no temperature, tidy up the CPU socket to ensure that it is in place. After this, if the temperature is still low, your CPU can be upgraded: (In addition to the above methods, there is another killer move: clear the BIOS settings by pulling out the jumper or replace the CMOS battery of the motherboard. When all these methods have been tried and all failed, you can call on Brother Shrimp to help.
Strange noises and odors
　　Phenomenon: Hear strange noises or smell strange odors.
　　Phenomenon analysis: Strange noises may be caused by bad sectors of the hard disk (a cacophony of piercing sounds); it may also be that the hard disk and the optical drive screws are not tightened, causing the chassis to resonate. Strange smells are mostly burnt smells, which are very pungent.
　　Countermeasures: First turn off the power. If it is a strange noise, open the chassis panel and check one by one. If it is a bad sector, repair or screen it. Shield. Be very careful about the odor. Use your nose to smell and find the part that emits the odor, then remove it and hand it over to the computer company for processing. In the meantime, everyone must defend their consumer rights. (If it is not out of warranty, replace it if it should be replaced, and repair it if it should be repaired.) Don't be careless about this! Because, the Onda optical drive of the author was burned alive because the power was not turned off in time (N seconds late) after it smelled the burnt smell, and the driver chip (Firewall) was burned alive. After that, it was useless to pay Uncle JS. (So if you smell a peculiar smell, immediately turn off the power, and then open the case to find the cause, but don't turn on the monitor. It can only be repaired by professionals. There is high voltage electricity there, so don't joke with your life.