DVRs, or digital video recorders, are hard disk video recorders, which are often referred to as DVRs, as opposed to traditional analog video recorders. It is a set of computer systems for image storage processing. It has functions for long-term recording, recording, remote monitoring and control of images/voices.
What should I do if my hard disk recorder fails?
First,
encounter blackouts
Monitors, mainframes, speakers, etc. will be forcibly closed in one instant. Document data that is being written is lost. If you are performing disk read/write operations, it may also produce bad tracks. The momentary voltage fluctuations of the power failure will also impact the chips, circuits, and resistors of the hard disk recorder hardware. In order not to measure, it is best to install a brand power supply when installing a DVR. This will minimize the adverse effects of voltage fluctuations on the hardware from the power supply. After the power failure, turn off all power to prevent the monitor and ATX power from starting at the same time when the next call comes in. This will cause damage to the hardware. When you use WORD to edit a document, use the automatic saving function of WORD. If the power outage moment happens to be on the disk, the next time you boot, do not skip the disk detection at startup to detect the occurrence of bad sectors. Once a bad track is found, use NORTON, PQMAGIC and other tools to repair or shield the bad track. In addition, if economic permission is available, an optional UPS is provided to provide power-off protection for the DVR.
Second, the
power is old
When upgrading a DVR, for example, if a new high-speed optical drive is installed, the higher speed and power consumption will increase the load on the power supply, resulting in a crash or restart. The original power supply did not take into account current power consumption of hard disks, video cards, and high-speed optical drives, so the output power of the power supply was not too high. Plus, some no-name power supplies themselves “shrink†and could not provide enough power when the system The increase in the number of equipment, power consumption becomes larger, the output voltage of poor quality power supply will be sharply reduced, eventually leading to system instability, automatic restart phenomenon. In addition, poor contact of the power socket, excessive voltage fluctuations may also cause damage to hard disks and other devices. You can replace a high-power, high-quality power supply that will give your hard disk recorder the most security.
Third,
automatic shutdown
Today's mainstream motherboards have a temperature monitoring function on the CPU. Once the CPU temperature is too high and exceeds the temperature set in the motherboard BIOS, the motherboard will automatically cut off power to protect the relevant hardware. On the other hand, power management and virus software in the system can also cause automatic shutdown. If the above abrupt shutdown phenomenon occurs frequently, first check whether the heat dissipation of the CPU is normal. Open the chassis and visually check whether the fan blades are working properly. Then enter the BIOS options to see the fan speed and CPU operating temperature. If the fan is a problem, perform related dust removal maintenance on the fan or replace the fan with better quality. If the power supply is aged or damaged, it can be confirmed by replacing the power supply. If the power supply is broken, replace it with a new one to prevent burning the hardware. Of course, it may also be poisoning, enter the system, cover the installation of power management from the installation CD, and then thoroughly kill the virus. At the same time, it is necessary to constantly update the antivirus software virus database and use less pirated disks. Do not download unsolicited mail attachments.
Fourth,
system failure
Can not enter the system, start the screen still, or show: Thediskiserror etc. There are many phenomena prompted by E text. The more common reason is that system files have been modified, corrupted, or loaded with abnormal command lines. In addition, the failure of the hard disk is also one of the reasons. The first thing to try is to be able to enter safe mode. Press F8 on the start and select the third item in the boot menu: Safemodel. After entering the safe mode, you can find the fault through the device manager and the system file checker. You can check whether there is a "!" It is also possible to reinstall the driver, and the system file can be recovered from the installation file (it is possible to copy the WINDOWS installation disk to the hard disk in advance). If you can not even enter the safe mode, through the boot with the CD or floppy disk to boot to DOS, first antivirus in DOS and use Dir to check the C drive system file is complete, if necessary, through the system floppy disk SysC:, restore Related basic system files. If no file is found on the C drive, only system reinstallation is performed.
Fifth, the
system is down
The desktop is locked or blue screen, the mouse can not move, even when the hot start (ALT + CTRL + DEL) will not work. In addition to the system's own bugs and compatibility problems among software, it may also be that running too many programs at the same time causes the process to block and trigger a crash. When the machine is true or false, press the Numlock button and the indicator light changes as a fake. False When you can press ALT+CTRL+DEL at the same time to select the program name in the list of tasks that appear, then mark the item that does not respond, and click End Task. Reality is solved through cold start. For a blue screen, press the RESET key after pressing the ESC key.
Six,
boot black screen
The boot of the DVR must first be powered by the power supply, and then the BIOS of the motherboard guides the self-check, and then the CPU, memory, graphics card, hard disk, optical drive, etc. are checked. If there is a problem in the middle, the DVR cannot start normally. , even a black screen. First, make sure that the monitor, mainframe power, and other external connections, and the internal connections between the host power supply and the host power supply interface are connected smoothly. Graphics card, memory due to the use of long, long-term contact with the dust in the air, the formation of the gold finger on the oxide layer can cause poor contact. Wipe the cheat with cotton, alcohol, and dry it until it's back. In addition, observe whether the CPU is working properly, turn on the machine for about half a minute, and touch the CPU fan's heat sink to see if there is temperature. With temperature, the possibility of a broken CPU can be ruled out. No temperature to sort out the socket of the CPU, to ensure contact with place. There is no temperature after this, it may be a CPU problem.
Seven,
equipment loosening and aging
During the process of moving the device, a lot of vibration will often cause the internal components of the machine to loosen, resulting in poor contact and causing the hard disk recorder to crash. Therefore, when the hard disk recorder is moved, severe vibrations should be avoided. Normally, you can check whether the boards are loose when you find a crash. You can unplug them and plug them in again. The memory stick is loose, or the quality of the memory chip or the memory chip itself. Should be based on specific circumstances to exclude memory contact failure, such as re-plug it. If there is a problem with the memory quality, you need to replace the memory module to solve the problem. Hard disk aging or bad sectors caused by improper use, bad sectors. This will cause the machine to crash when it is running.
Eight,
hardware resource conflicts
If the frequency of the main board and the main frequency of the CPU do not match, the FSB will be set too high when the old board is overclocked, and the stability of the operation may not be guaranteed, resulting in frequent crashes. This is mainly due to the fact that the matching of the compatible parts of the machine is not done well. Therefore, it is best to use the whole machine provided by a professional manufacturer, and do not assemble the hard disk recorder. Software and hardware are not compatible. Some monitoring software may not be able to start up or even be installed normally on some microcomputers. There may be software and hardware compatibility issues. Sometimes the settings of the sound card or video card conflict, causing an exception error. In addition, if the interrupts of other devices, DMA, or ports are in conflict, a few drivers may cause abnormalities that may cause them to crash. The solution is to start in "safe mode" and make appropriate adjustments in "Control Panel" → "System" → "Device Management". For situations in which unusual errors occur in the driver, you can modify the registry. Select "Run", type "REGEDIT", enter the registry editor, through the menu under the "Find" function, find and delete all the "primary key" and "key value" related to the driver prefix string, restart.
Nine,
caused by improper use of spare parts
When a few people assembled DVRs for their customers, they used poor quality motherboards, memory, and some even sold counterfeit motherboards and old CPUs and memory. This would make the machine unstable during operation and it would be difficult to avoid crashes. . The larger the memory capacity, the better, at least 0.5% to 1% of the hard disk capacity. If this problem arises, you should replace the memory with the largest possible capacity. Or add a new memory module to the original memory. Since CPU overclocking increases the operating frequency of the CPU, it may also destabilize its performance. The reason is that the speed at which the CPU accesses data in memory is inherently faster than the speed at which data is exchanged between memory and the hard disk. Overclocking makes this contradiction even more pronounced, exacerbating situations where the required data cannot be found in memory or virtual memory. This will cause an "abnormal error." The solution is relatively simple, it is to let the CPU back to normal frequency. In addition, for motherboards that do not support UDMA66/100, you should pay attention to the setting of the hard disk operation mode in CMOS.
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