Hey guys need help here i am really new into this thing so i have no idea what i'm doing so yesterday i bought a 4GB DDR3 RAM on my local computer store because i use a program called CPU-Z and my old ram was DDR3 so i bought the same thing and then i unplug and turn off my computer and put in the new ram into the memory module so when the time i turned it on it beeps so many times and the computer was always turning off and on and also i noticed that the new RAM is taller than the old RAM i was confused by this i bought the same thing DDR3 but they are different on the sizes but i tried to remove the new RAM then the PC just boot up normal, Did i did something wrong on this?