Check to see if the slots are the same size and type if both are occupied. Since combining different types or sizes of memory can result in compatibility problems and less-than-ideal performance, this information is essential if you intend to upgrade your RAM. Examine your laptoslots.p's handbook or manufacturer's website for detailed information on supported configurations and maximum memory capacity to make sure you're getting the most out of your device. The next step is to find out what kind of RAM your system supports after you've determined how many RAM slots your laptop has available. RAM types used by different laptops include DDR3, DDR4, and even DDR5 in more recent models. Before buying more memory, it's critical to understand what your laptop supports because each type has different compatibility and speed requirements.