Check your (RAM) memory

If your computer is running slow check your computer's Random access memory (RAM). RAM is the best- known form of computer memory. Your RAM is installed in the slots as shown below on your motherboard, called the DIMM slots. Check that you have the correct RAM for your system. Check your motherboard manual for the type and amount of RAM it supports. Not having enough memory can absolutely cause your computer to run slow. The more memory, the faster your computer will perform. In most cases, adding more RAM will help speed up your computer than any other upgrade you can make.
Check your motherboard for RAM

Installing a DIMM

Always unplug the power supply before adding or removing DlMMs or other system components.
This will prevent damage to your motherboard or other components.

1. Carefully press the retaining clips outward to unlock a DIMM socket.
2. Align a DIMM on the socket such that the notch on the DIMM matches the DIMM slot key on the socket.ram
3. Firmly insert the DIMM into the socket until the retaining clips snap Pack in place and the DIMM is properly seated.

Removing a DIMM

1. Simultaneously press the retaining clips outward to unlock the DIMM.

Note: Support the DIMM lightly with your fingers when pressing the retaining dips.
The DIMM might get damaged when it flips out with extra force.

2. Remove the DIMM from the socket.

Random access memory (RAM)