The other place to find the RAM memory is on the back of the laptop. There is usually a RAM memory door to unscrew. Once its uncrewed, you can access the ram. 2. To replace or upgrade the RAM memory of your Dell PP39L laptop, hold both metal prongs to the side.The RAM memory card will release from the motherboard. 3. Gently hold the ram card on a 45 degree angle and remove the card. 4. Install your new replacement RAM memory on your Dell PP39L laptop.he other place to find the RAM memory is on the back of the laptop. There is usually a RAM memory door to unscrew. Once its uncrewed, you can access the ram. 2. To replace or upgrade the RAM memory of your Dell PP39L laptop, hold both metal prongs to the side.