This is a noob question but I want to make sure before I go ahead with the upgrade. I have this laptop http://www.acerpanam.com/synapse/fo....com&siteid=7117&words=all&keywords=&areaid=2 and I want to upgrade to 4 GB of memory. Is this the correct memory I need? http://www.newegg.com/Product/Product.aspx?Item=N82E16820134605