- 1). Find out what kind of memory module your motherboard supports. Modern motherboards support dual channel architecture (DIMM) while older ones support single channel (SIMM). Refer to the motherboard's manual for the information that you need. If you happen to have lost the user manual, check whether it is available from the motherboard manufacturer's website.
- 2). Clean your hands and ensure that they are dry before you start touching any computer hardware part. Turn off the computer, unplug the power cord from the power outlet, and then remove the cables at the back of the computer, including that of the mouse, keyboard, monitor and other external peripherals.
- 3). Remove one side of the PC cover to expose the motherboard. Refer to the manual of the casing for instructions on how to remove it. If you do not have the manual, study the casing very carefully to find out how to remove the cover. Use a Phillips screwdriver to unlock the cover or pull the latch to open. Lay the computer on its side so that it will be easier to install the new RAM module.
- 4). Look for the "memory banks" where the memory modules are installed. The memory banks of your motherboard should have a label beside them that reads "SIMM" or "DIMM."
- 5). Hold the new RAM module by the edges. Align it to the open memory bank, and then insert the bottom edge firmly into the slot. Push it down until it clicks into place.
- 6). Put back the computer cover, plug all cables that you removed earlier and turn on the computer. Click "Start," and then right-click "My Computer." Click "General" tab, and then read the system details. If you initially had 512 MB of RAM in your computer, for instance, the number listed should increase after installing a new RAM module.
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