It is not difficult to replace your laptop graphic card, the hard part is to upgrade where you need to identify which graphic is better and compatible with your laptop. So how to identify which graphic card is compatible? for this one you need to get advice from laptop graphic card seller and they will tell you what is the compatible graphic cards you can buy for you laptop model. You also can call the service center or Google the Video Cards replacement parts for your model or read the Manuals. For example HP NX9420 and NW series can use Nvidia FX 1500M over AMD Mobility Radeon X1600. A. Upgrade and Replacement Process Get your laptop service manual, you will need to read the part removal and replacement. You can get it from your laptop manufacture site. For this tutorial we will replace Acer Aspire 7720 With ATI Graphic Card. 1. Remove the back cover by loosen the screw and open the back compartment. *Note : For othe model such as HP or DELL or other models, the removal might be slig...