1. Reboot the computer and see if the problem lies somewhere else. If you do not hear any beeping while the computer boots up and if the system responds normally, the computer should be performing fine. Note that rebooting the computer fixes minor errors. If you hear one long beep tone, there may be a problem associated with the memory.
2. Turn off the computer. Unplug the power cable from the power source to make sure that it is safe to open the computer casing. Unplug all cables attached to the computer as well. Open the computer casing using a screwdriver, or simply press a button or pull a latch to open it. Note that computer casings have various designs that require different steps to open.

3. Locate the memory chips/modules in your computer. They are installed in 'memory banks' parallel to one another. The memory modules are rectangular in shape. Read the labels on the motherboard if you are not sure. The label should read 'DIMM' or 'SIMM.'
4. Unlock the memory modules from their respective memory slots. Remove the chips and inspect their physical condition. Make sure that there are no broken or cracked pins that may be hindering the memory chips from functioning properly. If there are cracked/broken pins, consider purchasing a new memory module that is compatible with your motherboard.
5. Wipe the memory modules clean. Dust can cover the module pins and prevent them from functioning. Use a wet cotton to wipe the pins. Make sure that the memory module has dried completely before putting it back into the memory bank.
6. Close the computer casing when the memory modules have been installed properly back into their respective slots.