I am wanting to speed up my PC and need to know the best way to do this. I have a 1.61GHz AMD Sempron processor with 512 MB of RAM. My PC is used for E-mail and occasional internet use and the odd photo download. Am I right in thinking it would be better to change the whole motherboard or will my PC run quicker if I just increase the RAM to 2GB. Not sure of slot setup. Any help is appreciated.