The document discusses the AMD Opteron processor and its architecture. It introduces the AMD 64-bit architecture and core microarchitecture, which includes integer and floating point units. It then describes the problem of only supporting one HyperTransport link table in the BIOS, which prevents removing CPUs. The main approach presented is a new HyperTransport link configuration application that supports multiple link tables, allowing more flexible CPU configurations of 2, 4, or 8 ways while avoiding BIOS issues.