At work (I'm not in the IT dept), we have a few new dual 3.4Ghz Xeon boxes, running on supermicro PCI Xpress motherboards, each with 6GB of RAM.<BR><BR>The BIOS sees all 6GB. Linux sees all 6GB.
Different Windows editions have had different upper maximum RAM limits. 64-bit Windows support different amounts of memory as an SKU differentiating feature, with the low end being 512MB for Windows ...