Talk about the common problems and solutions of memory

I believe that many friends in the use of computers, will always encounter a variety of problems of one kind or another. If you start the computer but cannot start normally, cannot enter the operating system or run application software, often crash and other failures, these problems often occur because of abnormal memory failure and lead to operation failure. This is because memory as one of the three major accessories in the computer, mainly responsible for the temporary access to data tasks. The quality of memory on the market is uneven, so the probability of failure is relatively large. Now in order to solve these common problems of memory, we gives you tips, hoping to help you.

Memory problems partly because of upgrading memory, but because of the mismatch of memory types, often encounter some trouble, the specific memory problems and suggestions are as follows.

1、The computer cannot boot properly

There are three main ways to solve this phenomenon:

First, replace the location of the memory, which is a simple and commonly used method, generally inserting the old memory at a low speed in the front position. Second, on the premise that the system can basically start, enter the BIOS settings, and set the memory-related settings according to the specifications of the low-speed memory. For example, if you use one of the memory (if the DDR333 and DDR400 memory are mixed, DDR333 memory is recommended), start the computer, enter the BIOS settings, slow down the working frequency and reaction time of the memory, so that the old memory can run stably, you can shut down and insert the second memory.

2、The computer is unstable

The emergence of such problems is mainly caused by memory compatibility, and the basic idea of solving them is roughly the same as above. First, change the location of the memory. Second, disable the option of automatic memory configuration by SPD in the BIOS and change it to manual configuration. Third, if the mainboard has the I/O voltage regulation function, the voltage can be properly adjusted to enhance the stability of the memory.

3. The memory capacity identification is incorrect after mixing

The reason for this phenomenon, one may be caused by the motherboard chipset itself, some old motherboards only support 256MB memory capacity (i815 series only support 512MB), beyond the part, cannot be identified and used. Of course, there are some cases caused by the motherboard cannot support high memory particles, the only way to solve such problems is to replace the motherboard or memory. In some cases, this problem can also be solved by adjusting the insertion order of memory.

The problem of unstable memory mixing is an old one. In the face of this situation, I recommend that you choose high-quality memory like Kingston and Kimtigo when purchasing memory, because their electrical compatibility and stability are better, the chance of problems is lower, and after-sales is guaranteed.

The other part is because during the use of the memory, the goldfinger is caused by poor contact with the slot of the motherboard or is caused by a virus and other reasons. The specific memory problems and suggestions are as follows.

4. The computer cannot start properly

After turning on the power supply of the computer host, the alarm horn of the chassis will sound for a long time. After turning on the power supply of the computer, the computer can start but cannot enter the operating system normally. After the Error message "Error: Unable to ControlA20 Line" appears on the screen, the computer will crash.

Tips: Most of the above failures are caused by poor contact of the memory slot on the motherboard. The treatment method is to pull out the memory after opening the chassis, wipe the gold finger of the memory and the memory slot with alcohol and clean tissue, and check whether the memory slot has signs of damage, and insert the memory again after the wipe check, generally the problem can be solved, if it is still unable to power on, pull out the memory and insert another memory slot for testing. If the fault persists, the memory module is damaged. In this case, you can replace the memory module with a new one.

5、Computer startup display "ON BOARD PARLTY ERROR"

There are three possible reasons for this phenomenon：

First, the parity check in CMOS is set to be effective, and there is no parity check on the memory bar.

Second, the parity check circuit on the motherboard is faulty.

Third, the memory is damaged, or poor contact. Processing method, first check the relevant items in CMOS, and then reinsert the memory to try, if the fault still cannot disappear, it is the motherboard on the parity test circuit fault, change the mainboard.

6. A problem occurred when running application software in DOS state

This kind of failure is generally due to the allocation between the software, occupied memory conflict caused by the general performance of black screen, flower screen, crash. The solution is to exit the windows operating system, in the pure DOS state to run these programs.

7. Windows runs slowly

Tip: The system has many reminders about memory errors. This kind of failure is generally due to illegal access to the memory of applications running under windows, too many unnecessary plug-ins reside in the memory, applications, active Windows open too much, and unreasonable application-related configuration files and other reasons can make the system slow down, and even crash. The solution to this problem must be to remove some illegal plug-ins (such as 3721), memory resident programs, reduce the active window and adjust the configuration file (INI), etc. If the speed is significantly slow when running a program, it can be solved by reinstalling the application program. If the system is slow when running any application software or program, the system is slow. The best way is to reinstall the operating system.

8. The memory resides in the memory after being infected by virus programs

The size of the memory value in the CMOS parameter is modified by the virus, which causes the memory value to be inconsistent with the actual memory size of the memory bar, and causes the system to slow down and crash during use.

Tip: First use the new anti-virus software to carry out a comprehensive anti-virus treatment of the system, and thoroughly clean up all viruses in the system. Since the CMOS has been infected with a virus, it can be restored to its default value by discharging the CMOS. The method is to short-circuit the CMOS, restart the machine, and carefully check the hardware parameters after entering the CMOS, and correctly set the parameter values of the memory.

9. The computer selected a memory bar incompatible with the motherboard

Tip: Before upgrading the memory of the computer, be sure to carefully check the motherboard instructions, if the motherboard does not support more than 512M of large capacity memory, even after the upgrade cannot be used normally. If the motherboard supports, but the problem is caused by the poor compatibility of the motherboard, then you can upgrade the BIOS of the motherboard to see if you can solve the compatibility problem.

Design difficulty

There are many high-speed signals and more isometric lines, and the requirements are strict.

Because the number of PCB board layers is more, the signal rate is higher, the design of lamination and parameter plane is more particular.