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What’s the problem with the POS cash register often crashing?(1)

Crashing is the most common type of POS register or computer failure, and it’s also one of the most annoying. Because the fault point can be large or small, and there are many reasons for the crash, and the failure phenomenon is also various, the failure phenomenon can be roughly classified into two categories – regular crash and random crash. As for the subjective performance of the crash phenomenon, it is mostly “blue screen”, the screen is “freeze” and has no response (at the same time, the mouse and keyboard cannot be input), often illegal operations (or forcibly closing a program), and it has been lost before entering the operating system. Reaction, etc., pay attention to distinguish between slow system and waiting. This kind of machine is not a crash, but the processing capacity does not meet your needs… Crash is the most common type of POS cash register or computer failure, and it is also the most annoying. A kind of headache. Because the fault point can be large or small, and there are many reasons for the crash, and the failure phenomenon is also various, the failure phenomenon can be roughly classified into two categories – regular crash and random crash.As for the subjective performance of the crash phenomenon, it is mostly “blue screen”, the screen is “freeze” and has no response (at the same time, the mouse and keyboard cannot be input), often illegal operations (or forcibly closing a program), and it has been lost before entering the operating system. Response, etc., pay attention to distinguish between slow system and waiting. This kind of machine is not a crash, but the processing power is not suitable for your use.
At first glance, the crash may seem “terrifying”, but the cause of the failure can never be separated from the hardware and software. Therefore, as long as we know the specific cause of the failure, we can completely “settle” the crash, or even eliminate it. In the following, we will classify and explain the reasons for the “crash” of the computer and its treatment methods (combined with the failure phenomenon) based on the premise “conditions” of the crash failure. I hope it will be of some help to everyone.

The first type of situation: occasional crash failures and increasingly frequent occurrences under normal use, or frequent crashes after sudden crash failures.

1. Frequent “crash” failures caused by excessive dust
After a new POS cash register has been used in general urban shopping malls in my country for about a year, there will be a lot of dust inside it. If it enters the slot of a certain board, it may cause the board to have poor contact and crash or crash. Other failures, and often unexplained crashes.
In addition, too much dust in the machine will have a bad effect on the heat dissipation of some important computer hardware equipment. If the heat dissipation of important hardware such as CPU and graphics card is not good, it will naturally cause blue screen or blurry screen or freeze or black screen failure. Such crashes Although the phenomenon is usually not regular, the longer it is used, the more frequently it crashes. Therefore, it is best to dust the computer once a year. Of course, professional personnel are required to operate the dust removal to avoid other failures. Of course, it is also a very good measure to keep the machine clean at ordinary times.

2. Frequent “crash” failures due to poor heat dissipation of a certain hardware

The CPU, graphics card, hard disk, power supply and other hardware generate a lot of heat during work. Fortunately, most of them have their own cooling fans, so it usually does not cause a crash, but if there is too much dust on the fan Or if the lubrication is poor, the wear is serious or the aging is serious, then there is a problem with the heat dissipation of these hardware devices. Over time, as the situation continues to deteriorate, there will be frequent crashes or restarts after being turned on for a period of time.
Therefore, you should regularly check the working status of the fans in the host and lubricate them regularly to avoid such failures. If there has been a frequent crash failure every time you use it, don’t worry, you just need to open the case and observe which fan is abnormal when the computer is running (such as loud noise or significantly slowed down or stalled speed, etc.) or which fan The hardware temperature is abnormal (such as touching a chip or the heat sink is very hot, etc.), and then do the corresponding treatment.

3. Unexplained “crash” failure due to conflicts in memory

This situation is more likely to occur when running multiple software at the same time. Although sometimes running many software at the same time is normal, sometimes it suddenly crashes for no reason. After restarting and running these applications, it is very normal. In fact, Many of these failures are just fake crashes, mostly due to conflicting memory resources – applications run in memory, but some applications use the same memory address as another software due to design reasons. , a conflict will arise. Such crashes are usually freeze-frame crashes or reboots or blue screens or prompts for “illegal operation” or unresponsiveness.
Such failures can only be avoided but not eradicated—that is, try not to let many programs run at the same time, it is best to turn off the software that is no longer in use, and try to use good software to avoid such failures.

4. Irregular “crash” phenomenon caused by poor contact of connectors

This kind of failure is easy to identify, because no matter how small the program you are running, it may crash, sometimes even freeze at startup, and sometimes it will not crash if you run a large program for a long time. Therefore, the fault point of this kind of fault is still very easy to find. Usually, you only need to unplug everything that can be unplugged (such as graphics card and power plug, etc.) If it is, you need to remove the rust or replace the rusted part with a new one.

5. Frequent “crash” failures caused by memory stick failures

As the operating frequency of the memory stick is getting higher and higher, its heat generation will also increase, and the stability will be relatively poor. Usually, the memory stick failure refers to the looseness of the memory stick, virtual welding, or the damage or failure of the memory chip itself. stable, etc.
If you frequently appear in the WINDOWS operating system, such as illegal operations related to memory and other crashes, or directly prompt the registry error and restart the machine, then we must first check whether the memory stick is loose or dust is inserted into the memory plug. In the slot, if no abnormality is found, you should try to replace the memory module. If everything is normal, it means that the memory module itself may be faulty. Of course, sometimes long-term overclocking will also cause the memory module to age and become more and more unstable.

6. Too little free space on the hard disk or too much disk fragmentation will also cause a “crash” failure

Since some large-scale applications require a lot of memory to run, if the physical memory is insufficient, the virtual memory on the hard disk needs to be used. If the remaining space of the hard disk is too small, it may cause a crash. In addition, if your computer does not defragment the hard disk for a long time, the system resources will be strained and the computer will crash. Of course, if there are too many junk files in the hard disk, it will also cause the hard disk to find files and cause the crash phenomenon. The performance of this type of failure is also quite special – usually when the hard disk is continuously “crazy” for read and write operations, it will suddenly freeze or blue screen of death.
Therefore, it is best to set the virtual memory to a partition with a large remaining space, and regularly clean up various junk files and defragment the disk regularly.

7. Frequent “crash” failures due to hard disk failures

If the hard disk is seriously aged or is vibrated during operation or has logical, physical bad sectors or bad sectors, then the computer is prone to frequent crashes during operation. As for the treatment method, it is best to replace the hard disk. Of course, if it is only a logical error, it can still be repaired with various repair software. Because some of the failure points of such failures are not easy to find, I recommend that you perform a “disk scan program” on a regular basis (once every two weeks), so that you can be aware of your hard disk.

 

 

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