Getting ram...need help

[TimTheEnchantor]

I have a compaq presario 5000 series....(yea i know it sucks)
I am looking to buy RAM at either 64, 128 or 256 .... is there a way to find out what type of ram I need to get before I put it in my computer?

 

[MasterTrix]

Easy, open your case and take you memory out. (RAM) it's on the clip (what kind off ram).