I have an older server that I have been asked to upgrade to Windows Server 2008 X64. I believe it'll install and run but how efficiently. It has a single Xeon 2.8GHz with EM64T, 2MB L2 ECC Cache, and Hyper-threading 4GB RAM. I believe the EMT64 is the feature that will allow me to run a x64 bit OS. Is that correct? I'll have to also add memory for this particular application and do not want to spend the money if it'll not work or....work but be pitifully slow. I think I know the answer to that but want other input. Thanks all!