Laptop RAM Upgrade Help

I recommend Corsair, Crucial, G.Skill, Patriot, Kingston, Mushkin Enhanced since they are the most known.

For $45
You can have G.Skill 8GB (4GBx2) DDR3 1333 for your laptop

http://www.newegg.com/Product/Product.as...6820231295

or

Mushkin Enhanced 8GB DDR3 1333 for your laptop
http://www.newegg.com/Product/Product.as...6820226027

If your computer is running DDR3 you can run other DDR3 ram.

However a easiler a method would be look up what processor you have. In this case it is a intel processor so you have to go to the intel site , look up on google or hp support site to see how much DDR3 MHZ you can run up to. (DDR3 1066,1333,1600,1866,)
Since I look up your pc. It says you have a intel i5 you can run up to DDR3 1333.

Usually if you install higher speed then what it can run (DDR3 1600) it will downclock to DDR3 1066 or DDR3 1333