Windows Server 2008 hardware needs Detailed Explanation
April 27th, 2008Processor: 1.0 GHz x86 or minimum 1.4 GHz x64, recommended 2.0 GHz or faster; Itanium version would require Itanium 2.
Memory: minimum 512 MB, recommend 2 GB or more.
The largest memory capacity to support: 32 Standard Edition 4 GB, Enterprise and Data Center Edition 64 GB; [...]