When you start a computer, operating system, or application software, the operation may often fail due to memory exceptions. I have been using my computer for many years. I have summarized some causes of memory exceptions and provided the following solutions, hoping to give you some reference.
Fault 1: the memory stick has poor contact with the motherboard slot and the memory controller fails. The error message "error: Unable to controla20 line" is displayed on the screen after the host is powered on.
Solution: Check whether the memory stick is in good contact with the slot or replace the memory stick.
Fault 2: self-check passed. Running applications in DOS statusProgramMemory Allocation Error due to memory address conflict. The screen displays the message "memory a11ocationerror.
Solution: the memory management files such as himem.sys1_emm386.exe are not used in the confis.sysfile to set XMS. the EMS memory or improper settings enable the system to use only KB of basic memory. The running program prompts "out of memory" (insufficient memory) and cannot be operated. These phenomena are soft faults. Compile the system configuration file config. sys and restart the system.
Fault 3: in Windows, applications running in Windows can cause many memory errors due to reasons such as illegal access to memory, too many applications resident in memory, too many active windows opened, and unreasonable application-related configuration files..
Solution: You must clear the memory resident program, reduce the active window, adjust the configuration file (INI), and reinstall the System and Application to handle such a fault.
Fault 4: When applications in DOS (such as game software running in DOS) are running in windows, black screens, screenshots, and crashes occur due to software allocation and memory usage conflicts.
Solution: exit the Windows system, enter the DOS status, and then run the application.
Fault 5: The program has viruses, the memory where the virus program resides, the memory value in the CMOS parameter is modified by viruses, which may lead to memory Value Mismatch with the actual memory size of the memory, Memory Operation exceptions, and other phenomena.
Solution: Use anti-virus software to eliminate viruses. The parameters in CMOS are modified by viruses. First, discharge the CMOS transient connection and restart the machine. After Entering CMOS, carefully check the hardware parameters, correctly set the parameter values related to memory.
Fault 6: The computer is upgraded to expand the memory, and the memory is not compatible with the motherboard.
Solution: first, upgrade the BIOS of the motherboard to see if the problem can be solved. If it still does not help, you have to replace the memory.