New RAM may be needed when an application locks up or the computer displays frequent error messages. To determine if the problem is the RAM, replace the old RAM module as shown in the figure. Restart the computer to see if the computer runs without error messages.

When selecting new RAM, you must ensure that it is compatible with the current motherboard. It must also be the same type of RAM that is currently installed in the computer. The speed of the new RAM must be supported by the chipset. It may help to take the original memory module with you when you shop for the replacement RAM.