Random Access Memory

From TSG Library of Knowledge

Random Access Memory (also known as memory or RAM) is part of a computer that holds data that only needs to be used temporarily.

Interface Types

The most common desktop RAM types are:

• EDO - 72 pin
• SDRAM - 168 pin
• DDR - 184 pin
• DDR2 - 240 pin
• DDR3 - 240 pin

Each RAM type has its own specifications, and none of them are compatible with each other.

RAM Testing

A simple way to test the integrity of a memory stick is to use MemTest86+. This is a program that is either sent to a floppy disk, or burned to a CD. Upon restarting the computer, it boots this program instead of the operating system, and performs a thorough test of the system RAM. If any errors are encountered, then there is a problem with the memory system.

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