Hello, my friend wants to add more RAM into his PC. He has AMD hardware and his computer is a prebuilt. He has DDR3 RAM and he doesn't know if he will need a specific brand of RAM for it to work in his PC (like some RAM won't work with AMD, I don't know if that is how things work). Also when I look up RAM for him it has the MHz number, does that matter too? (https://www.amazon.com/dp/B00J8E8ZA6/ref=twister_B01N2UT24F?_encoding=UTF8&psc=1). Sorry if this post seems scattered and stupid we are both new and bad at this stuff and I couldn't think of better wording at times, thanks.
Link to the computer he bought: https://www.newegg.com/Product/Product.aspx?
Link to the computer he bought: https://www.newegg.com/Product/Product.aspx?