Fellows, I m currently with a server which is a pentium III 500 Mhz. I m currently experiencing some problem with it. I ll upgrade this machine with a sempron 2800+ so the 64 bits architecture. I will have to option. Just change as it and keep the 32 bits architecture. Will i have some problem ? Or install the 64 bits architecture. Which one as the better eff ency right now. I m reluctant to the 64 bits due to the lack of upgrade comparatively to the 32 bits. What is your opinion ? Franck