Once the ribbon cables and motherboard screws have been removed use your phillips head screwdriver to remove the two screws on the side holding the cover plate into place. This makes removing the motherboard easy, but remember that static can cause damage to your motherboard . Please make sure you are using a grounding strap or touch the metal chasis to discharge any static electricity you may have stored in your body. The motherboard is secured in place via a socket connector located on the under side of the motherboard. In this picture, more force is exerted with the left hand as is is closest to the socket connector.
Slight pressure is applied with the right hand to make sure the motherboard is removed evenly.
Pull the motherboard up and out. Be very careful handling the motherboard. You want to try not to bend or warp as this may cause component damage. If you do not think you are able to do this part, please contact a technician immedieately. Set the motherboard to the side on a non static suface.