Go to www.crucial.com and let it scan your PC to determine what you need.
Buy a set of 2 * 4GB to get to 8 GB. Don't by 4 to add it to what you have at the moment.
Im trying to find a way to make an upgrade on my ram but i cant find the exact type and i dont wont to buy the wrong one
My pc is hp and my motherbord is HP 2B47
My ram at the moment is 4 but it would like to upgrade it to a better one possible.My system runs on Windows 10 64 bit.Since im a big noob about pcs any answer will be helpfull