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The performance of any computer largely depends on the memory of the machine. The higher the memory capacity, the faster and more efficiently the machine will function. Computer memory is measured in terms of Random Access Memory, popularly abbreviated as RAM.

In most Windows-based machines, the control panel displays the memory information. By contacting the manufacturer or by looking at the documentation provided, it is possible to determine how much memory the system can handle. Quite often, it is double the amount that was originally installed. Computer memory chips, measured in MB RAM, come in multiples of 32. The starting range is usually 32 MB RAM for the low-end machines and can go as high as 1024 MB RAM (1 GB RAM)

For a computer to function properly, a compatible chip must be installed. If more than one chip is installed, care should be taken that there is no mismatch of speeds. Memory chips are thoroughly checked before being rolled out. However, problems may develop which may lead to frequent system crashes. Hence, frequent memory checks are an important activity to ensure the smooth functioning of the machine.

Computer memory may be of two types, SD RAM and DDR RAM. Today, most computers use the latter category as the former is being gradually phased out. Apart from checking these chips for any physical damage, there are several programs that help the user check the functionality of the memory chip while functioning. Memory testers help gauge the efficiency of the memory module and provide detailed information about its functioning.

At times, it is difficult to check memory accurately. This is due to the fact that memory resources are partly used by the operating system and partly by the internal functions. If a memory test highlights a specific problem, the bad module should be pinpointed and rectified to avoid further complications.

Since the computer memory maybe considered the second most important element of a computer the processor, care should be taken that it is defect free. Memory testing software might prove expensive and hence the best solution to combat this problem is to install a reliable chip in the beginning.